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

Faggasexual

1. 1) Someone who may appear as if they were a homosexual but only decides to squeeze other men's bun buns for simple humor. Most fagg..

Yernk

1. 1) to yoink (steal) 2) to yoink (masturbate) 1) He yernked a french fry from his buddy's plate. 2) His mother barged in and caug..

Under Smile

1. A cute way of saying a vagina or pussy. In Basic Instinct, Sharon Stone uncrosses her legs and shows her Under Smile. See under, smile..

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Sin Muscle Edit Meaning