look up any word, like donkey punch:
 
1.
A male who's favorite quality about himself is his muscular definition. He likes to think all on-lookers are impressed (and envious) of his muscles, but really all non-Muscle-Douches laugh at the Muscle-Douche's self-opinion. A Muscle-Douche tends to: work out frequently with the sole purpose of enhancing his appearance, talk about working out, always flex a little when body is exposed, and lower his voice a tad bit until it becomes a natural habit. Researchers say 70% of Muscle-Douches are insecure about the size of their penis
Leonard: "Why does Chad always flex in the showers?"

Stevie: "I don't know dude... Chad's such a Muscle-Douche"
by youngdubbyrox May 15, 2011