When performing anal sex, the male pulls out a chili dog with undigested corn in the batter - the friction from churning butt-butter pops the corn kernels creating a popcorn dog.
After pulling out of Roy's ass, Siegfried was surprised to see the corn in the shit on his dick begin to pop from the friction, creating the mythical popcorn dog.
by W.E. Coyote August 20, 2003
Get the popcorn dogmug.