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to agree to a (usually coinflip) prop bet but back out at the last moment.
anyone wanna flip for $100? no grimstarring !
grimstarr by CaptainBusto September 30, 2006
Related Words

grimmtard 

Very sexy and never missed in his life
Grimmtard is the most seggiest man alive
grimmtard by Grimmtard March 23, 2021
grimstarr, grimmed. Of pizza faced nature. Male with erect penis not exceeding 2 inches. Genenral ghey activites. Douchebag.
so then we went to 'do-it' and i looked down and was like...what a grimstarr. see that dudes face...its like the moons fucking surface..what a grimstarr. that dude grimmed me off..what a grimstarr
grimstarr by stan darsh August 22, 2007

Grammstapo 

Someone who constantly corrects people's grammer, be it online, phone, or in person.
Gavin: Its "you're", not "your"!

Cliff: Sorry, didn't mean to alert the Grammstapo!
Grammstapo by Ryan Kirkham November 24, 2006

grimpsta 

one who habitually or criminally pimps one's grandmother, and/or one who habitually or criminally pimps the elderly
I seen this little white grimpsta leave off drinking his pepto-bismizol and crack the bottle right in this wrinkly old ho's face over one 9/11 coupon ($20)
grimpsta by dillettante October 12, 2006

Grimmsnarl 

A Dark/Fairy type final evolution of Impidimp, and evolution of Morgrem.

Also has a Gmax form, with long ass legs.

This Pokèmon is exclusively Male. Its Female counterpart is Hatterene.
Guy 1: bro have you seen Grimmsnarl
Guy 2: bro smash
Guy 1: that's gay
Grimmsnarl by Iloveglaishur June 7, 2024