The smell of an very sexually active man’s bed several months after a divorce, where his ex-wife normally did the laundry. aka: Mystery Sheets
Friend 1: “Damn, what the hell reeks? It smells is a thousand types of perfume, sweat and … regret.”
Friend 2: “Oh yeah, my sheets haven’t been washed since Bonnie moved out. Guess I have hot bunk skunk. Been so busy hot bunking the women that I haven't gotten around to wash the sheets.”
Gary: you know that chick Taylor i was trying to hook up with?
Geoff: yeah?
Gary: well turns out shes a lesbian who is into chess
Geoff: chess? that's bunkadunk!
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.