Top Definition
A professional bodybuilder who uses steroid.

Most professional bodybuilders take that drug...
Gymgoer 1: Dude that Mr. Universe got awesome body! I want it!
Gymgoer 2: I heard to get that big you need to...(about to say something long about nutrition and workouts)
Skinny nerd: He's just another Mr. Roid! FFS...
by definitioner August 10, 2007
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