When a male ejaculates into the mouth of an obese female with enough force to cause her to expel flatus.
Dude 1:Dude, have you ever smelled fart and cum at the same time?
Dude 2: Yeah, one time I gave this girl a Whitewash Tuba.
by Mr. Man of Sri Lanka October 7, 2012
Get the Whitewash Tuba mug.