Goblet of Fire

'Hermione's a witch!' Harry snarled.
'Have it your own way, Potter,' said Malfoy, grinning maliciously. 'If you think they can't spot a Mudblood, stay where you are.'

Malfoy chuckled softly. 'Scare easily, don't they?' he said lazily. 'I suppose your daddy told you all to hide? What's he up to – trying to rescue the Muggles?'

'Where're your parents?' said Harry, his temper rising. 'Out there wearing masks, are they?'
Malfoy turned his face to Harry, still smiling. 'Well… if they were, I wouldn't be likely to tell you, would I, Potter?'

'Keep that big bushy head down, Granger,' sneered Malfoy.

Overheard on the train: '...Father actually considered sending me to Durmstrang rather than Hogwarts, you know. He knows the headmaster, you see. Well, you know his opinion of Dumbledore – the man's such a Mud-blood-lover – and Durmstrang doesn't admit that sort of riffraff. But Mother didn't like the idea of me going to school so far away. Father says Durmstrang takes a far more sensible line than Hogwarts about the Dark Arts. Durmstrang students actually learn them, not the defence rubbish we do ...'

'We were in the Top Box –'
'For the first and last time in your life, Weasley.'

On Ron's dress robes: 'Weasley… what is that?'

'Look at this!' said Malfoy in ecstasy, holding up Ron's robes and showing Crabbe and Goyle. 'Weasley, you weren't thinking about wearing these, were you? I mean – they were very fashionable in about 1890…'

'So… going to enter, Weasley? Going to try and bring a bit of glory to the family name? There's money involved as well, you know… you'd be able to afford some decent robes if you won…'

A gleeful smile spread across Malfoy's pale face. 'Don't tell me you don't know?' he said delightedly. 'You've got a father and brother at the Ministry and you don't even know? My God, my father told me about it ages ago… heard it from Cornelius Fudge. But then, Father's always associated with the top people at the Ministry… maybe your father's too junior to know about it, Weasley… yes… they probably don't talk about important stuff in front of him…'

'Well, I can certainly see why we're trying to keep them alive, said Malfoy sarcastically. 'Who wouldn't want pets that can burn, sting and bite all at once?'

To Ron: 'Imagine them not even getting his name right, Weasley, it's almost as though he's a complete nonentity, isn't it?' he crowed.

'And there's the picture, Weasley!' said Malfoy, flipping the paper over and holding it up. 'A picture of your parents outside their house – if you can call it a house! Your mother could do with losing a bit of weight, couldn't she?'
…
'Oh yea, you were staying with them this summer, weren't you, Potter?' sneered Malfoy. 'So tell me, is his mother really that porky or is it just the picture?'

'Don't you dare insult my mother, Potter.'
'Keep your fat mouth shut, then,' said Harry, turning away.

Ron Weasley: 'Don't talk to me,' Ron said quietly.
...
'Why not?' Said Hermione in surprise.
'Because I want to fix that in my memory forever,' said Ron, his eyes closed and an uplifted expression on his face. 'Draco Malfoy, the amazing bouncing ferret ...'

'Ah, look, boys, it's the champion,' he [Malfoy] said to Crabbe and Goyle, the moment he got within earshot of Harry. 'Got your autographs books? Better get a signature now, because I doubt he's going to be around much longer…half the Triwizard champions have died… how long d'you reckon you're going to last, Potter? Ten minutes into the first task's my bet.'

On the Blast-Ended Skrewt: 'Take this thing for a walk?' he repeated in disgust, staring into one of the boxes. 'And where exactly are we supposed to fix the leash? Around the sting, the blasting end or the sucker?'

Wearing the badges: 'Like them, Potter?' said Malfoy loudly, as Harry approached. 'And this isn't all they do – look!' He pressed his badge into his chest, and the message upon it vanished, to be replaced by another one, which glowed green: POTTER STINKS.

'Go on, then, Potter,' said Malfoy quietly, drawing out his own wand. 'Moody's not here to look after you now – do it, if you've got the guts –'

On Hermione: 'You're joking, Weasley?' said Malfoy, behind them. 'You're not telling me someone's asked that to the ball? Not the long-molared Mudblood!'

Hermione: 'Twitchy little ferret, aren't you Malfoy?'

On Hagrid: 'Oh, he hasn't been attacked, Potter, if that's what you're thinking,' said Malfoy softly. 'No, he's just too ashamed to show his big ugly face.'

'Well, I think this should put an end to the oaf's teaching career,' said Malfoy, his eyes glinting. 'Half-giant… and there was me thinking he'd just swallowed a bottle of Skele-Gro when he was young… none of the mummies and daddies are going to like this at all… they'll be worried he'll eat their kids, ha, ha…'

'Missing your half-breed pal?' he [Malfoy] kept whispering to Harry, whenever there was a teacher around, so that he was safe from Harry's retaliation. 'Missing the elephant man?'

'Hey, Potter! Potter! How's your head? You feeling all right? Sure you're not going to go berserk on us?'

'Trying not to think about it, are we? ' said Malfoy softly, looking around at all three of them. 'Trying to pretend it hasn't happened? '
'Get out, ' said Harry.
He had not been this close to Malfoy since he had watched him muttering to Crabbe and Goyle during Dumbledore's speech about Cedric. He could feel a kind of ringing in his ears. His hand gripped his wand under his robes.
'You've picked the losing side, Potter! I warned you! I told you, you ought to choose your company more carefully, remember? When we met on the train, first day at Hogwarts? I told you not to hang around with riffraff like this! ' He jerked his head at Ron and Hermione. 'Too late now, Potter! They'll be the first to go, now the Dark Lord's back! Mudbloods and Muggle-lovers first! Well – second – Diggory was the f–'
It was as though someone had exploded a box of fireworks within the compartment. Blinded by the blaze of the spells that had blasted from every direction, deafened by a series of bangs, Harry blinked and looked down on the floor. Malfoy, Crabbe, and Goyle were all lying unconscious in the doorway. He, Ron, and Hermione were on their feet, all three of them having used a different hex. Nor were they the only ones to have done so.
'Thought we'd see what those three were up to,' said Fred matter-of-factly, stepping onto Goyle and into the compartment. He had his wand out, and so did George, who was careful to tread on Malfoy as he followed Fred inside.
'Interesting effect,' said George, looking down at Crabbe. 'Who used the Furnunculus Curse?'
'Me,' said Harry.
'Odd,' said George lightly, 'I used Jelly-Legs. Looks as though those two shouldn't be mixed.'