When a young female puts their hand on their hip with their elbow bent at a 90-degree angle. Inspired by prom pictures and attempts to make arms look tiny.
Katherine had such bad Prom Arm in all of the pictures from last night. I think she was trying to impress Sean by tricking him into thinking she has tiny arms.
by supersnowman93 December 12, 2012

The arms on a overweight person that begin to resemble the shape of a shrimp, as in the upper half of the arm being very large (the shrimp's head) and tapering down as it gets closer to the hand (the shrimp's tail).
by thekellinator January 5, 2011

by Nip Trip July 21, 2017

by Jagathecat August 10, 2015

Guy #1: Hey Bro, remember my ex from last year.. what did ya think of her?
Guy #2: Fuck, I gave her some arm time!
Guy #2: Fuck, I gave her some arm time!
by mr_dirtbox December 4, 2010

Super sized penis, even freakishly larger than a baby arm. Size of not a baby's, not a child's, but a teenager's arm.
by GraceUnderPressure August 26, 2017

Switching from one arm to the other when doing an activity because it's getting tired or starts hurting.
I had to arm toggle while masturbating because my arm was getting tired.
RSI makes me arm toggle quite frequently. Thank god I can use the mouse with either.
RSI makes me arm toggle quite frequently. Thank god I can use the mouse with either.
by relix February 28, 2010
