Sin Muscle

What is Sin Muscle?

the muscle in the forearm which is used to masturbate (jack off)

Laura: Nice sin muscles! Haha!

Anthony: How do you know they're not from doing jazz hands!

See sin, muscle, forearm, masturbate, up, down, movement, jack, off

Kirbiboh

1. A merge between 'Kirby' and 'Kuriboh'a small,hella horny,two foot hella pink furry ball clad in red shoes and an evi..

Zaboomafoo

1. A Lemur puppet on a kids tv show, usually on in the mornings. Anyone who has no children or is not under 10 watching this show needs he..

Oh Crum!!

1. when you take a dump and forget to wipe Oh Crum!!! it's all over me!! See shit, poop, feces, dump, crap..

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Sin Muscle Edit Meaning