to find something disgusting or revolting
that was absolutely bumpin' mate
The act of having sexual intercourse with a Naughtys.
Aaron: "What you doin tonigth homie?"
Jake: "O you know, just chillin, probably bumpin' naughtys later.
Aaron: fashow
The act of sexual intercourse between two females. Can also mean two women who are close friends.
"Y'all always together, y"all be bumpin cats."
A conversation with no substance or general meaning
Elaine: i bet there talking about me
Kramer: oh please there just bumpin gums
the act of striking ones knuckles against another persons knuckles in a gentle, yet deliberate, manner, as a sign of respect.
"Yo dude, I totally banged that girl"
"aww yah! Bumpin nucks!"