a group of 4 or 6 people holding a coffin which is supposed to be you after stepping on a lego or stubbing your toe. it is the new hot meme that anyone could laugh at. much comedy
The kind of sex that happens in a tight space; you can also have troublebreathing during this time. Places where you can have coffin sex include closets, small bathrooms, dressing rooms, etc.
A: I had coffin sex with my girlfriend the other night.
B: It must've been pretty tight, then. Where'd it happen?
A: In the bedroom closet at my parents' house.