Fat Kid's Cramp 

noun: The pain that you endure will doing strenuous cardio activity.

Oh, man, I should not have had those hotdogs I now have a Fat Kid's Cramp.

Fat Kid's Cramp by ZappaGnat July 7, 2011

Speller's Cramp 

A grammatical affliction common among users of email, online chat, and text messaging, wherein the afflicted deem themselves too busy and too stupid to spell correctly.

"Were u at? Met me at the mal after wok and well go shoppeng. Oops. I got serous Speller's Cramp! LOL."

Speller's Cramp by tbonewilson July 21, 2009

Cock sucker's cramp 

Typically a mouth breather. When the person goes about their day with their mouth slightly open and never fully closed.

Tommy has cock sucker's cramp. He walks around and does his shit with his mouth half open all the time. Probably from sucking so many cocks all the time.

Cock sucker's cramp by CMBC June 25, 2009

texter's cramp

muscular spasm that develops on the fingers of a person who types and sends texts inordinately.

Dude X: My fingers are hurting unbearably.
Dude Y: Texter's cramp, you know!

texter's cramp by uttam maharjan June 18, 2010

Blower's Cramp

often used to describe someone's face if there is a picture taken with their mouth in an O shape.

I found a great picture of George Bush with Blower's Cramp.

Blower's Cramp by fakemonster August 24, 2005

driver's cramp 

(n) The cramp a new driver gets in their right leg within the first few weeks of obtaining a learner's permit or driver's license.

Oh man, my driver's cramp is killing me!

driver's cramp by way2muchPie4u April 9, 2010

Pervert's Cramp

A cramp in the hand one gets after continuous periods of masturbation. It normally occurs around the middle finger, ring finger, and pinky. Similar to a writer's cramp, but, well, it's for perverts.

Person #1: I was jacking off to a porno on the internet a few days ago, and I got this pain in my hand!
Person#2: Oh, that must've been a pervert's cramp.

Pervert's Cramp by somestupidrandomguy August 19, 2009