back passage

Noun. The rectum. {Informal}

"Grief, Bob! Last night me an' the boys got so drunk I woke up with a toy car stuck up the back passage!"

by Alex Quantashassle August 27, 2005

back passage blocker

a piece of faeces that is too big to pass through the exit hole in your bum.

"Ow, i've got me a Back passage blocker!!"

by Balard!!! July 8, 2005