Top Definition
A strict diet consisting solely of protein designed to quickly loose those excess pounds. This version swaps tasty steaks for clammy man juice.
"No way, Dave. I'm not sticking that in my mouth again! Now let me out, I'm starving!"

"Shut the fuck up, Posh. You know you're on a man-fatkins diet! Now swallow my load and stop being a whiny bitch"
#protein #diet #spunk #man juice #sperm
by Burro's Dead Nan August 13, 2007
5 Words related to Man-fatkins diet
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