Top definition
A mechanic's arm is what happens when you wank too much; one arm becomes more muscular than the other. Someone who lies on their back all day tightening nuts.
John: "Jaidon, you've probably got mechanic's arm from her Facebook photos".

Jaidon: "Ha ha, very funny."
by Phrewb October 31, 2011
Get the merch
Get the Mechanic's Arm neck gaiter and mug.
Sep 6 Word of the Day
Style with Ease
Damn that was a steezy ass kickflip son!
by niggaliciouszor April 29, 2007
Get the mug
Get a steezy mug for your fish Nathalie.

Activity