1. Adjective describing the gargantuan proportions and nature of an action or object. Can be used ambiguously and totally out of context

2. An exclamation of approval. Can be proceeded by "that's" or can be left alone.

pronounced MAY-ass-Stee-iff
Young Man: Did you see the size of that bodily orifice?
Jon: That's Mastif!
by The Young Man Men February 17, 2009
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to have sex with all the whores of your
harem at one time.
shit mastafication is the bomb!!
by Kurt Himself August 15, 2003
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Stupid word for stupid who think they're smart.
I can hear your Mastification, it disturbing me.
by Dessy des May 12, 2022
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Someone who doesn't understand what you're trying to say, when you're trying to call them stupid nonchalontly.
Person 1: "Hey man, not the orangest carrot in the bunch huh?"
Person 2:".... wat"
Person 1: "You're such a mastificator man.."
by bootyliscious laquisha July 25, 2012
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