Arm Fat 

The act of jiggling one's fat on the underside of the bicep area of their arm. This jiggling can also occur on the calves of their legs, Double Chin, Thigh, or stomach area.

"One moment, I must go arm fat that stranger over there."

Arm Fat by TheNoseSucker March 14, 2017

Fat Arm 

To cruise down the street in your car with the window rolled down with you arm hanging out the window making your muscles look bigger than they actually are.

Let's go fat arm it down mendo.

Fat Arm by DaLumberjack June 18, 2008

fat arm 

A lesbian rower who is known to sleep with someones boy friend...also can be called ant farm or dykleznowkbi or horse face bird nose

Rachel is a fat arm.

fat arm by Young Nak and Lil' Ash Ass October 23, 2006

Arm fatigue 

A bogus criticism of Trey Lance the 49ers probably will use to keep Jimmy Garoppolo on the roster for one more season just so they can get a third-round comp pick for him in 2024.

"Trey Lance gets arm fatigue sometimes after he throws, so we'll tell people that's why we're keeping Jimmy Garoppolo as a $27 million backup when really we just love comp picks."

Arm fatigue by 49ers Quality Control July 18, 2022

speedbag armfat 

It's when a fat person's triceps area is so fat it looks like a boxing speedbag.

That chick is so big I want to punch her speedbag armfat.

speedbag armfat by Kt nola February 26, 2024