3, 6, 9

Applied by a guy when a girl is hot, or to draw attention to the hotness of a girl.
Comes from the chorus of the song 'Get Low' by L'il Jon (3, 6, 9, damn she fine)

3-three years prison
6-six feet under, as in dead
9-nine months pregnant

the act of getting the weed hook up to sell you a dime for 9 dollars , which you split three ways with 2 of your boys. you all throw 3 dollars on the blunt