Forearm Shiver 

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.

Forearm Shiver by Dayglo Aborted July 6, 2011

Forearm of justice 

To have sex with a girl whilst pushing her face away from you using your forearm at a rightangle in front of you. Best done during doggy sex to push her head forewards into the pillow.

During make-up sex, he took out his aggression with a forearm of justice pushing the back of her head down into the pillow, whilst taking her from behind.

Forearm of justice by JohnEvo December 1, 2006

forearm shiver me timbers

Upon thrusting a fist into your partners asshole, you punch or thrust upwards until you tickle the tonsils and provide a shiver of delight or death.

Aaron gave Jeff the old forearm shiver me timbers until he squeeled in delight.

forearm shiver me timbers by Flaccid Frank April 20, 2018

Whacker's forearm

a bulge in one's forearm as a result of masturbating in excess.

Johnny had Whacker's forearm after Jane went on vacation.

Whacker's forearm by Mark Ruberti May 20, 2007

Muscular Forearm Syndrome 

A Syndrome in which one masturbates so much that one of his forearms is more muscular than the other

Boots:"dam man i have a seriously strong right forearm and i dont know why."

Krabs:" man dont u know its muscular forearm syndrome you sick perv, but it is bigger. SO Ur a righty HUH?

Muscular Forearm Syndrome by jewjewb October 25, 2007

British Forearm

Basically a handjob using your forearm and your bicep.

"i was getting this british forearm and i splooged everywhere!"

British Forearm by PrestigePorn March 25, 2010

Face-forearm 

When something that is so incredibly stupid happens that the use of a facepalm is not enough to show the underlying emotion; burying your head in shame.

P1: I just said mutant...
P2: What's a mutan?
P1: M-U-T-A-N-T
P2: OH!!! *face-forearm*

Face-forearm by CrunchycandyBro January 24, 2011