The cold season when everyone’s coupling up, so you settle for a new bf/gf way below your standards. ~Or~ you’re one of the smart ones who cozies up w Coors Light and your pupper bff.
Bobby: Yo, it’s cuffing season, you wanna lock this down?
The kind of sex that happens in a tight space; you can also have trouble breathing during this time. Places where you can have coffin sex include closets, small bathrooms, dressing rooms, etc.
A: I had coffin sex with my girlfriendthe other night.
B: It must've been pretty tight, then. Where'd it happen?
A: In the bedroom closet at my parents' house.