The uncomfortable, and sometimes painful, seizing up of the muscles in the hand and forearm caused by excessive stimulation of another's or one's own genitals, normally from rubbing, stroking, or fingering.
"Man, I spent so long fingering my girl last night that I've developed Lover's Cramp"
"Sorry, I can't play the guitar today, I've got Lover's Cramp"
"Sorry, I can't play the guitar today, I've got Lover's Cramp"
by Bubert Samson May 1, 2013

by Jimmy Blaze Walker Willson August 26, 2017

by LillDaryl September 6, 2023

Tom: dad my arm really hurts.
Tom's dad: hmm must be jackers cramp
Tom: www shut up dad! You're embarrassing me I don't do that!
Jacking off masturbation
Tom's dad: hmm must be jackers cramp
Tom: www shut up dad! You're embarrassing me I don't do that!
Jacking off masturbation
by Pirotek March 19, 2017

Shit bro I think I have butterfly cramps. He makes me feel nervous and plus I got my period yesterday and these cramps are just not helping.
by nikepoush879 December 2, 2021

A sore neck, Allied pilots in WWII got sore necks from constantly turning their heads looking for Meserschmitt fighter planes.
by gargoyle6969 September 6, 2010

A sudden, involuntary, spasmodic contraction of muscle(s) in the hand, sometimes with severe pain - which may last from seconds to minutes as a result of playing video games using game controllers.
by Sushiray June 24, 2014
