the act of eating someone out or giving someone head.
"Dude, I was going down on my girl today..."
"Oh my god, I was going down on him today and his cum was so nasty"
by sex advice August 8, 2003
An Act of giving oral sex (both in terms of Male and Female)
Yo,Man remember the hooker going down on me!!!!
by Andy March 4, 2005
1) A statement to express that you will destroy, bring down, beat-up, or otheriwse eliminate somone or the affectivness of something

2) Also used less aggressively in a sports setting to notify a person that they are going get beat by being "knocked off their winning pedastal".
Man 1: "Your momma is an ugly ho!"
Man 2 (Just before he punches Man 1): "Dude, your going down!"
by toadcheese February 25, 2004
and slang term for "whats happining?", "how are we going to do this?", ect.
yo hows this going down
by 187 April 5, 2003
slang for having oral sex. used when making out, a guy/girl will say, "go down for me" instead of 'gimme head bitch'.
so did u go down on him?
by allkat April 2, 2004