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

Kthnxbai

1. Contraction of Ok, thanks, bye. Used when you want someone to shut up (you're not exactly trying to be polite,) yet it's not ..

W.e.t.s.u.

1. An ancronym for We Eat This Sh*t Up (pronounced wet-sue), meaning we are gung ho and highly enthused, used in the Army in the Vietnam er..

No Sly

1. abbreviation for "No, seriously" I found the love of my life, no sly! See seriously, for real, for reals, no lie, no joke, f..

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Sin Muscle Edit Meaning