you have no explanation why hes a punk ass

what did he do if you dont mind telling

http://youtu.be/tvtP4-8WxlU

suck his dick while he's sleeping then everyone will know he's gay

Pretty standard thing do is figure out what he hates and find a way to make it so whatever he hates happens. There's a lot of variations on the idea... and since you didn't provide any info there's not much else I can say.

tell his mom he has a boyfriend

homophobia isn't funny dude

Make candied apples, and one candied onion.

What Mr_Owl said.

If all else fails, you could do the old "water bucket door opening" prank where you put the bucket on the door barely open. Or you could just watch Home Alone and get ideas with that.

put nair hair remover in his shampoo

put gasoline in colored bottle instead of water

delete his c:/ drive

grab a kitchen knife and stab him that would be funny as hell

download 5 gigabytes of hentai on his computer and make an anonymous email account tipping off his mom about it

fill his water bottle with vinegar

shit on his bed

replace his lipbalm with a glue stick

gradually add more and more finely crushed glass to his diet, until over the span of a few weeks he succumbs to the internal bleeding and dies

works every time

Burn his house down

rub fiber glass insulator on his sheets

buy a bunch of smoke detectors and empty the Americium-241 isotope into his water supply. nothing says wacky hijinks like radiation poisoning!

bang his mom, get her pregnant if it's possible

While he's sleeping, lay your balls in his eyes and fart in his mouth.

super glue everything in his fridge

but if you really wanna take it up a notch give him a gorilla mask when hes sleeping

This thread is literally /b/-tier.

I'll contriboot anyway, use his e-mail to subscribe to gay porn websites. Give his telephone to shady advertisement people. This shit will drive him crazy.

thats fucking sick, you sicko

wipe ur butt with his pillow then put a dark colored pillow case on it