Top Definition
A large, marijuana, blunt that has taken the shape of a baseball bat.
If every one puts their weed together, we can roll a "Fatty Bo Batty"!!!
by Will C05 January 21, 2009
1 more definition
Big ass blunt.
Holy sh*t thats a Fatty-Bo-Batty!!!
by Big Perm February 10, 2003

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