Top Definition
When a kid named Eric's arm is fucking curled up and he try's to rap but sucks ass.
Eric fisted Mr. Donovan with his crab arm while being called a retard by a gay kid named Matt.
by Dick wand June 11, 2014
1 more definition
5 Words related to Crab Arm
Crab Arm is a condition that you get from cracking someone else crab. He cause excruciating pain in the forearm and can leave the sufferer from ever cracking crab again.
Scott cracked so much crab the other night he woke up with crab arm.
by Cjn2008 August 25, 2008

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