One is drunk as a motherfucker when they consume 1/2 a sip less than what would literally kill them. This stage of drunkeness is characterized by the will and want to have sex with your biological mother.
I am drunk as a motherfucker and horny. I'm going home and going balls deep in mama's ass.

That dude is drunk as motherfucker; he's just living the dream.
by Texas Hammer December 11, 2011
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