When a man works out his arms and nothing else, leading to disproportionately large arms with a torso and chest that do not match. Gay men are notorious for this. Any gay bar will have a plethora of these men walking around.
Oh girl, you got big gay arms.
Oh mary has been working out nothing but her arms. She has big gay arms.
When Rock Climbing / Bouldering
ones arm become painfully fatigued with minimal effort applied, more commonly known in the climbing world as “Gay Arm”. This can be a result of not streching correctly before climbing or if your having a bad day.
"i hope i dont get gay arm
today while climbing"
ive got gay arm
, why wont you work damn
"dont you get gay arm today, you've got to climb that wall"
"AHHHHH GAY ARM!!!"