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.
by Jake1675 May 30, 2013
What happens to your arms when you are continually patting yourself on your back...
John had monkey arms after he finished his project.
by scooter133 June 15, 2016
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