1. To masturbate, jack off, stroke it, usually used in context to not let the opposite sex know what you mean.
(kill)
2. To fantasize about someone while masturbating.
1. "After that I went home and killed it"
2. "I killed Susie last night, and Betty too."
When something is so ugly it just has to die.
Did you hear about the chupacabra sighting, i heard they were said, "Kill it, kill it with fire, it's so ugly"
To ruin or mess up by doing something annoying. ("killing a high")
Stop f*ckin around man! You're killin' it!
got a good joke or something close going and someone jus says something hella outta line and it jus kils tha joke
we was baggin on tre's mommas booty and shawn killd yo!
the act of male masturbation; jacking off.
i was horny than a mutha fucka; i had to go kill right quick