pron. Contraction of them.
1. Those people or things (plural).
2. That person (singular). Usage as a singular pronoun is similar to the use of the word they as a singular pronoun; used as a reference to a person where sex (male or female) is unspecified or has not been determined. Used in this way because english doesn't have a singular form nonsexual pronoun.
That person sucked, so I took 'em out of the game.
Suffix added to adjectives and participles to intensify their meaning. By extention, these words may used as abstract nouns.
Party Grrl One: That stupid drunk-ass just fell into the pool!
Party Grrl Two: Hey, check out that nasty-ass drunk streaking down the street like a dumbass!
Party Grrl One: Cool! That gives me a chance to talk to his fineass brother.
Being sexually and romantically attracted to one's self. It goes beyond just looking one's self in the mirror to check if everything is in place. It goes to the level of actually turning one's self on by doing nothing more than looking at their own self!
A person who is selfsexual may be seen actually flirting with themself in mirrors or becoming aroused by watching nakkid videos of just themself.
Dude One: Check out that chick creaming over herself!
Dude Two: Sheit, all the hot chicks here are either lebsian or selfsexual. We ain't getting any play here!
Dude One: No way! Selfsexual chicks are hella easy.