Top definition
The (un)intended movement of one's penis.
"Dude, there's some serious schlong-motion going on in my new sports pants."

"Check out the schlong-motion on that guy!"

"This movie was entirely shot in schlong-motion"
by not really Jake September 05, 2012
Mug icon

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the shirt