moment arm

Possibly originating as a portmanteau of the terms moment of inertia and arm, moment arm has quickly become a much more awesome way of saying leverage.

I can't get this damn bolt to turn. We need more moment arm.

by shdy December 10, 2007

arm dance

Arm dancing is were a male holds his arm down and a female (or male) dance is on it until the man gets a erection.

lap dance arm dance

by ashlei,.(: January 03, 2010

arm porn

A butch dyke in short-sleeves showing off very well-developed arms with well-defined muscles (but not steroid-type muscle).

Jenny: Your girlfriend has a really nice body. Her arms look really hot in short sleeves.
Carla: Oh yeah, I can barely stop myself from drooling. It's total arm porn.
----
Sam (Samantha): Babe, now that I've started bulking up, I'm thinking of getting a tattoo on my arm. What do you think?
Laura: Oh baby, that would totally give you arm porn.

by dosaguasdyke April 25, 2010

arms race

the competition between nations to develop weapons of warfare. it is now being taken once again into outer space; some countries ,do not recognize the idea of mutually assured destruction

america and china are engaged in an arms race

by eric October 23, 2003

Party arms

Well-defined biceps that nicely fill out the sleeve of a t-shirt or short sleeve shirt. These arms can be seen anytime of the year but are prominent in summer and warmer climates.

Note: This type of arm is often displayed while wearing a tank top or completely shirtless.

OMG, the sight of his party arms make my asshole moist!

by Numbercruncher July 21, 2012

Freak Arm

the exhibition of outstanding arm strength from an otherwise scrawny individual

Deon: Man, Terrell just flipped Brock with one hand. You would thing Brock was stronger but no.

Dixon: Yep, Terrell got him with that Freak Arm.

by DMorrissette May 05, 2010

gruey arm

The arm that you don’t know what to do with when spooning your partner.

Girl and boy spooning in bed (or boy/boy, girl/girl, ?/? Obv)
Girl “your arm is in my back, can you move it”
Boy “that’s just my gruey arm, don’t worry about it”

by Nyaheh February 04, 2018