When one touches themselves to reach a self climax, slang definition of masterbate
Man when a girl master-b's it is amazing.
by Penguinsfan96 March 16, 2016
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(n)- Refers to an individual(male) with excessively large bitch tits, title given when individual has mastered the tremendous size of their bitch tits.

B(itch)
Master
T(its)
Girl-"DAMN! that kids really got some big bitch tits!"

Boy-"Yeahhh, but he's cool with it, we call him B Master T"
by PaPa1k3 October 4, 2010
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