| 1. | Butt Muscle | ||
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Douche Bag.
White Hat. Poser. D. Metzler From Baltimore Maryland "Butt Muscle Is The New Douche Bag."
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| 2. | Butt Muscle | ||
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The name you give to a friend(or foe) , for being a dumbass.
DUDE!, i saw Matt talking to these hot chicks yesterday and he told me that he was busy, what a butt muscle!
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