Top Definition
A drug dealer that sells musty drugs or smells musty.
Jim bought some weed from his dealer, but then it turned out that the niggah was a mustler.
by t0xxic September 07, 2007
1. Adjective

Describing someone as "Muscular" or "More Muscular" quickly and under your breath. (Usually to a nearby confidante)
Pssss.. Psssst... look grrrl he mustler than Taylor Lautner!
by GymRoomPeeper July 30, 2011

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