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A hole in which masting/mastering occurs, also known as master hole...note that masting in this definition is the act of ejaculating or engaging in some kind of sexual act. A clever but somewhat obvious term to be used in public to deter strangers from eavesdropping on a sexual/private conversation.
frat boy 1: Dude...Kara was such a freak!!

frat boy 2: How freaky brah?

frat boy 1: She asked me to mast in her masting hole.

frat boy 2: Nice :)
by Dr. Plague October 10, 2013
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