arm fucking
When your significant other jacks off your arm profusely till it turns red and starts to burn. Surprisingly feels amazing and everyone should try it sometime.
Oh dude my girlfriend just wouldn't stop arm fucking me! Felt so amazing!
What the fuck arms
Used when someone does something stupid or questionable. Hands and arms get raised and the words "What the fuck" are inferred.
Jackson goes to his car while his roommate watches his prank unfold from the second story window. Jackson opens the car door and a giant boxing glove punches him in the face. He immediately looks up at his roommate spying on him and gives him the What the fuck arms.