grumpin

grumpin is the slang term for actively making yourself grumpy(to the extreme)

grumpin comes about while talking to Asians about big trucks, and fast cars (besides Toyota MR-2's)

by Bryan Harving November 4, 2007

Grumper

Any toilet, outhouse or fecal collecting area.

Drew just laid a lincoln log in Cab's grumper.

by Phartman February 28, 2013

grumpapottamus

an extremely grumpy individual

you are being such a grumapottamus!

by schmemily May 13, 2005

Grumptastic

Used to define someone who is so grumpy, that it is almost in a fantastic manner.

Ex. Trent you are grumptastic today.

That man is so angry, you could even say he is grumptastic.

by I.T.M December 9, 2008

Grumpious Maximus

A very Grumpy girl,

"Alyna is Grumpious Maximus"

by Keith Miller CSH March 21, 2010

grumpy cowboy

Like the reverse cowgirl, but while doing reverse pushups.

Zach Statler: I gave that girl a sick grumpy cowboy last night, it was so good she made me wear a cowboy hat and boots.

by xbassistdoodx September 6, 2010

grumpuss

a legendary mythical beast renowned for it's grumpy disposition

dude you're being such a grumpuss today

by freggles March 18, 2011