three-in-a-bed

A threesome as a one-off (so to speak). A three-in-a-bed is a sexual encounter between three people, usually (at least for two of those involved) for the first and last time.

A phrase beloved of the British tabloid press is "three-in-a-bed romp", which stresses bother the impermanence and the (just-for-)fun nature of the experience, thus engaging the sexual interest and desire, the envy and thus the moralising indignation of the newspaper's readers all at once!

three-in-a-bed by kofi June 30, 2003

There’s no bunk beds in a graveyard 

Used as an analogy for “when the grim reaper comes, you can’t call your friends. You’re going alone”

Bro1: Man you know i love you but “There’s no bunk beds in a graveyard”.
Bro2: fuck

There’s no bunk beds in a graveyard by sukan December 27, 2022