What is Slip Her The Gimmick?
1.
Euphemism for sex. Gimmick is a catch-all word that ultimately became a nickname for penis, hence slipping someone the gimmick would be slipping a girl your penis.
"I heard Dave and Abi went out and he is going to slip her the gimmick."
See
Random Words:
1.
a) the area between the thighs which does not meet, thereby allowing sunlight, wind and rain to pass through
b) slang for a large vagin..