A person you are forced to live with in a tiny dorm room,with who the University will ensure that you will not get along with. Someone who will make your life hell, no matter how nice you are.

Hated enemy, nemesis

The reason I'm not getting any sleep right now.

roommates: noun.

Group of people living together in an apartment or house, but not necessarily sharing one room or bedroom.
Usually denotes platonic relationships, although hooking up sometimes happens.
Commonly occurs in big cities & on college campuses.
The American equivalent of flatmates in the UK.

The epitome of douchbaggery. Brings random "women" to your room while you are trying to study for your chem exam. Dick move.

the bitch that sleeps in the room across the hall in my apartment who is a filthy whore with a short temper and annoying voice. The person that also messes up the kitchen and living room after you've cleaned it up like a 5 year old.

a person who will put all of his junk on your desk, leave dirty dishes everywhere, dig through your stuff, constantly play your games on your tv, be loud and obnoxious, and is just generally rude and disrespectful.

(n.) - The bain of one's existence. Often smelly, disrespectful, condescending, noisy, and all around horrible to know, let alone to live with. A roommate is often known to use your shit without permission, and return it in worse condition. If this means food, it is generally gone or at the least tainted beyond edibility. Roommates with typically dictate their own sleep schedule as if it is supreme to yours, stating they are an architecture major or some bullshit. Sometimes a roommate will play video games on your Xbox and television, talking to themselves while you are trying to be at peacel. Without noise canceling headphones, this can be extremely difficult. Particular roommates will make horrific noises, trying to deal with mucus build up in their windpipe. Kind of sounds like a cat coughing up a hair ball, while simultaneously scratching a chalkboard. It makes a person want to stab their roommate in the eye repeated, until the roommate ceases to live. If that isn't bad enough, a roommate will come back from the gym smelling as if he or she (he) has shit his or her (his) pants. To top it all off, a roommate will stare at a distance over your shoulder at whatever you are doing or watching on your computer. Sometimes, one might be compelled to do the same, but this time point an imaginary .50 cal sniper rifle at the back of the roommates head, pull the trigger, and fantasize about the ensuing carnage.

When roommates engage in sexual intercourse.