when one is on mdma and can't stop moving their arms in various waving patterns while dancing, as if they are swimming through the air.
look at that guy rolling, he's totally got those ecstasy arms.
The affliction upon the rear of the forearm from repeatedly missing a swing during a game of conkers and hitting your arm. The pain for the next couple of days is known as conker-arm.
Boss: James you have been off work for the past 3 days, why?
James: Conker-arm
Boss: A worthy cause.
when someone breaks both of their arms and has a cast where the arms look like a cactus
Brad: Bruh did you know that Chad broke both of his arms?!
Mark: No way! He must have cactus arms!
What happens to your arms when you are continually patting yourself on your back...
John had monkey arms after he finished his project.
The awkward moment when you're sat next to a stranger in the cinema, and there is a mental dispute as to who gets to put their arm on the rest...
You: "Dude my arms are really aching..."
friend: "why dont you rest them on the arm rest then?"
you: "nah, got arm rest anxiety"
means that you are a pro at winning
me: wow steve4212, you got the win!
Steve4212: so easy i doont need arms to win
The passive-aggressive action of a clerk or cashier who, when handing a receipt across a counter to a client, will not extend their arm to the halfway point which forces the customer to have to make up the difference, subtly throwing him or her off balance.
When I was in that CVS earlier the cashier totally short armed me.