Masturbation Arm

Disproportionate muscle growth in the arm used in masturbation, resulting in an "imbalance" of arm size.

Can be cured by using the weaker arm instead.

"Dude, check out my bicep! It's huge!"
"That's because you jerk with that one. Let's see the other one."

"I can lift a sofa with my masturbation arm. The other's just weak."

by funtakmonster February 20, 2012

Arm Fetish

When someone is constantly looking at the arms of the person they find attractive or if someone finds arms attractive.

Me: His arms are so nice!😍
Friend: You have such an arm fetish...

by Randoooommm March 12, 2019

tribal arm

sticking your arm up a partners ass hole with nothing but a long sleeve t-shirt on

wow dude i gave this girl a tribal arm last night, it was off the hizzzyyyyyy

by georgeyyyyyyyyyyyy November 28, 2009

arm cardio

Masturbation

Since his girlfriend broke up with him, he's really been getting in a lot of arm cardio.

by jspost March 8, 2016

McCain arm

Condition where your arm goes numb, preventing you raising it beyond horizontal

What's wrong with your arm?
Oh I had a flu shot earlier and now I've got a touch of McCain arm

by StewieG wannabe December 16, 2008

Grandma Arms

A condition affecting women where there is so much atrophied loose skin in the triceps area that it hangs down to partially cover their elbow. Also known as GMA's. Often seen on both pre and post {lap band} surgery patients.

"When I laid her on her back and she grabbed the headboard, her sleeves rolled up and exposed her grandma arms. It looked like she was wearing flesh colored {waterwings}."

by kid spranks February 13, 2009

Beefcake Arms

When a bodybuilder has bulked up so much, that their arms will no longer lay at their sides. Instead, the arms dangle out at an angle, and the individual takes on the characteristics of a strutting chicken. This is due to muscles on the arms resting against more muscle on the back and sides.

Bob took so many roids, that he developed beefcake arms.

by antiroid August 19, 2007