1. a phrase used as a declaration or recognition of greatness by oneself or another person, most often used in a congratulatory nature
2. an informal greeting between friends, replaces or adds on to "yo" to mean "hows it going", or "whats up"
3. a response to a greeting, and depending on vocal tones, can be used to convey a wide variety of moods
4. nonsensical lyrics used by Beanie Man at the beginning of the song Who Am I
Dude 1: Yo dude, remember that girl I was talking to at the club last night?
Dude 2: Yea.
Dude 1: Well afterward we went back to my place and she let me tap that!
Dude 2: Sim simmaaaaa!
Dude 1: Yo, sim simma?
Dude 2: Sim simma.
Beanie Man: Sim simma, who got the keys to my Bimmer?
When having sex, move left to right, as opposed to up and down or forward and back, this is most easlily done by laying on a sleeping bag, or any other slidy surface.
Dude, when I was bangin' my girl, I used the z-axis and she orgasmed like MAD.
When an officer on the battlefield gets wounded, and they give him so much drugs, that hes trippin balls.
Sgt. Johnson went on a field trip after he got shot in Vietnam.