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8.
Acronym, stands for "Tweep I'd like to follow."
"Man, that Fake Demetri Martin is one TWILF, if you know what I mean."
by blissfulslavery March 10, 2009
 
9.
n. One who farts in the bathtub and bites the bubbles.
v. His favorite pastime is twilfing.
He may be incompetant, but at least he is a world class Twilfer.

by Anthony A. Aardvark September 28, 2006