Top Definition
a fat bat is abnormaly fat wiener. A weiner that ranges from 10-50 pounds.
John took off his pants, and his wife saw a fat bat
by Robert Spratlin October 22, 2009
8 Words related to fat bat
Taken from the Television Show "Crank Yankers"; slang for the male genitalia; also see schlong, wang, cock
-"Man, I'm goin to prison, you gotta teach me how to kill"
-"Sir, I don't teach people how to kill"
-"You don't understand, you won't be gettin' a fat bat in the ass"
by Dougie Fresh December 14, 2004

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