Arm Shin

the piece of your arm between the hand and the muscle one. Also known as the forearm.

Mom: "Get your elbows off the table."
You: "It's not my elbows it's my arm shins!"
Mom: "Get your arm shins off the table!"

by gottaloveya August 19, 2014

Drummer Arm

When one of your arms is bigger than the other. Usually your dominant arm.

"Hey Jack, your drummer arm is awful!"

"I know bro, my left is so much larger than my right."

by DaRoffle February 18, 2015

Arm condom

Bag used to cover a cast

Kevin used an arm condom so that he could shower after he broke his wrist

by Kevisneedsanrx April 4, 2017

Aligator arm

To pretent to want to pay the check at a restaurant or bar, insincerely. He "Aligator armed" the check. Example is to reach out, but only so slightly to try to get the check but have it taken away by someone else at the table that will pay.

He "Aligator armed" the check. Example is to reach out, but only so slightly to try to get the check but have it taken away by someone else at the table that will pay.

by Steve Nicely July 19, 2010

Skinny Arm

A pose that the modern woman assumes in photographs to diminish the abundance of flab on her inner arm.

To give the deceptively casual appearance of a well-toned extremity, a female will place her hand on one hip, bending the elbow at a near-90 degree angle to prohibit excess fat from collecting next to her torso.

I had to untag that picture because I looked like I was about to ship out to fat camp; I forgot to strike a skinny arm.

Even out of shape men can rock a nice skinny arm.

by The Original Chubster June 11, 2010

arm barn

shoving one's fist up one's ass. Similar to fisting only a funnier word.

hey sailor... wanna go home and arm barn me?

by foofykitty May 28, 2006

third arm

The arm that ends up in the middle while cuddling.

My third arm is in the way.

by julie c January 6, 2008