Tankslap

The fine art of slapping one's "semi" off one's stomach to impress one's annoyed girlfriend. Also works with gay boys, apparently

I tankslapped and she was not impressed. Pah.

by The real Jeffers August 4, 2006

Tankslap

To hit someone or something with your penis.

"What sound does a tankslap make? DONG!"

"Man, if she does that to me one more time, I'm gonna tankslap that whore."

by Stovaa January 2, 2008

tankslapper

A rapid side-to-side oscillation of the front wheel of a motorcycle, where the handlebars literally 'slap' the gas tank due to insufficient road grip on the front tyre.

He had a tankslapper coming out of the first bend

by larry arizona May 4, 2006