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2.
Is a person who doesn't wash his or her ass.
Originates from Commerce City, Colorado.
That girl smells like a Stink-A-Butt! I bet she never washes her ass when she showers.
by MyNameIsMr.TylerNotMr.Taylor October 04, 2009
 
1.
a term of endearment to a small child or children
This is my lil stinka butt.
by aquaman2k10 February 06, 2011