acronym for twenty-inch-walkaway. A T.I.W. is a long, unbroken turd produce when consuming large amounts of fiber or taking metamucil.
Got up, had some coffee and then headed straight to the can to lay a T.I.W.
by Werrpiece c/o B. Reilly February 29, 2008
Slang and shorthanded version of the word "TILL"
Wait tiw I get there!
by The Big A. Morrison August 18, 2007