Bangkok!!!
Ask your roommate if he knows what the capitol of Thailand is. If he doesn't know, tell him its, "Bangkok!" while smacking him in the mid-section!

Rob The House
Wake up before everyone else and hide all the valuable stuff in the house. When everyone wakes up, they will think the house was robbed. Be sure to hide all the phones as well, you don't want them to call the police before you get to explain the joke.

Stitched Shut
Take your roommate's underwear and stitch the front fly on all of them closed so he cannot open them.

Glow In The Dark
Re-paint your roommate's room while he is on vacation back home. Use the same color it was before he left, just mix in some glow powder so it glows in the dark. You will need 2 lbs of glow powder per every 1 gallon of paint. Just do a search online, there are many places to buy glow powder. Some places also sell glow paint already made.

Duck Tape Shirt
Roll an entire roll of duck tape around your roommate's favorite shirt. Go over and around the shirt with the tape 2 or 3 times or more. Be sure to not cover the whole shirt completely. You want your victim to be able to know that it is indeed his favorite shirt that is covered. He will have to take all the tape off his shirt himself, by hand. What an annoying thing to have to do!!

Pink Nail Polish
While your male roommate is asleep put some pink nail polish on his finger nails.

Burn CDs Prank
If your roommate has a stack of burned cd's, then hide those cd's. Then replace those cd's with some that you burned where the songs are completely different. Make sure to forge his writing with the same titles on the new writable cd's. He will then pop in his U2 cd and wonder why the heck Snoop Dogg is playing.

Get Even With A Jerk
Does some lame guy harass you every time you walk down the hall? maybe a stare down or a whistle or a touchy. Well this will make him stop for good. First you poke him in the eye and when he grabs his face...now its time to pants him. Make sure there are people around to see this.

Yard Sale
A few minutes before your roommate returns from running errors, put all of his belongings outside with a yard sale sign in front. Make sure to leave a couple of his valuable things inside. Then sit there next to his stuff like you have been selling stuff for hours. When he pulls up and asks what the heck is going on, tell him you are selling his stuff for extra cash...tell him so far you made $50 bucks selling his (valuable item 1 and 2). He will freak until he sees its all a prank and his valuables are actually still in his room.

Nasty Vitamin Smell
Tape a small vitamin to a light bulb that is hidden by the lamp shade. Everytime your victim turns on the light there will be a horrible order in the air because of the heat from the light burning the vitamin. He or she will also have a very difficult time figuring out where the oder is coming from.