Noun, sense 1. An affectionate synonym for '
vagina'. See also gash.
Noun, sense 2. Someone with whom you basically just get drunk and/or high and have
sex, usually on a short term basis. Compare to "your girl" or "a
ho", both are higher on the intimacy ladder.
Sense 1: "I am so going to hit that notch,
bro."
Sense
2: "Are you going to the prom with him?" "Naw. He's
just a notch."