Masturbation forearms are caused by excessive masturbation. They can be identified under two conditions:
1)When one's forearms are disproportionate to eachother
2)When one's forearms are disproportionate to their upper arms (Think Popeye)
"Dude, I think you've got muscular forearm syndrome"
"What makes you say that?"
"You have masturbation forearms! You're right arm is bigger than your left!"
"...shit"
by Ano_Nymous February 28, 2010
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Having no muscle in your body except for in one's forearm; results from years of work

ing on a ship and not having time to go to the gym.
Popeye has major Fisherman's Forearm!
by Dsj1441 March 21, 2015
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A forearm so muscular it looks like a tumor growing in your arm
Nigga tf is that shit on yo arm??
Aye I've been using this squeezy boi and I got this gigantic tumor forearm now.
by buttBuddybrandi February 21, 2018
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said to mean that if you know about something before it happens, you can be prepared for it
you know his secret now ! forewarned is forearmed
by ismail29 January 15, 2023
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A technique done by men under 140 lbs to deliver devastating blows by swinging their forearms into the abdomen of their opponent from the receiving end of a standing headlock position. It has been said that this counter strike is effective more as a psychological attack than a physical attack.
Andre Johnson should have hit Cortland Finnegan with a forearm shiver before he threw the Lesnar-esc uppercut.
by five.cent December 2, 2010
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When you devote your time to your forearms. No hair, no fat, and certainty cannot be short and nubby.
I tots have a forearm obsession!

Damn Melissa!! That is one nice forearm!!!
by KristyL3e July 22, 2017
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The act of slowly raising your forearm up to a girls throat during sexual activites and proceeding to shake almost uncontrollably. Thus giving the illusion that your forearm is shivering. An amazing sex move usually reserved for the dirtiest of all women.
Did you hear? Garth gave that whore from the bar the forearm shiver lastnight.
by Dayglo Aborted July 5, 2011
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