What you imagine is behind that cracked door during your fapfest? It's Doorway Dad. He knows when you're awake, he knows when you're asleep. And he watches you masturbate. Beware!
Is a made up sex act you tell people you're into, to see if they act like they've heard of it. Then later when they Google it, they'll see they were trolled.
Theres no magic here people, its just describing an ass the size of a commondoorway. Meaning big giant hips / booty. In reference to the width of a doorway.
When someone is intending to leave a room/building and is standing in the doorway but stops to have a long conversation with someone else.
"I'm gonna go take a shower, alright?"
"okay, but before you go, have you heard of ___?"
"Oh, what's that?"
"blablablablabla"
"blablablablabla"
"oh, I was gonna take a shower. I guess it's the doorway curse"