A girthy turd occurs when you fist your ass, and stretch it open with 2 hands and take a big green shit. Also referred as a Shrek Dump (a big green watery shit).
The other day my asshole muscle squeezed out a girthy turd and it left me with a butt guppy.
by GirthyTurd October 23, 2009

7 Words Related to Girthy Turd

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