An arm-monkey are those "friends" you probably don't really like, but hang out with just to be nice. Usually younger than you. These arm-monkeys think its "super cool" to grab your arm and hang on to it like a monkey hangs onto a branch.
You know you have an arm-monkey because you'll want to cut off your arm everytime the "monkey" comes around and holds onto it.
*Little girl comes and grabs your arm*
You: Uhh, hi?
Girl: Ohh-Ahh-Ahh (monkey noise)
You: Nuuuuuuuuuuuuu!!!!!! I hava ARM-MONKEY!1!!!!!!!! D<
3👍 2👎
A well-formed turd that is long enough to wrap around.
She got to the toilet just in time to pinch off a foot-long steaming monkey arm.
1👍 1👎
Never swing at a woman...Unless you swingin' yo' MONKEY ARM.
18👍 8👎
A visual display of frustration or disappointment where you hang your head and raise your arms over your head and wave them back and forth in a monkey-like manner.
I could see John was having a bad day on the golf course when he went full Monkey Arms after yet another bad short.
9👍 8👎
A massive shit. One huge solid turn resembling a monkey arm.
God damn dude, I gotta go lay a steamy monkey arm.
8👍 5👎
What happens to your arms when you are continually patting yourself on your back...
John had monkey arms after he finished his project.