It's when you invent a sign so girls won't notice that you check out their tits. And then get discovered doing your invented sign.
Grumb...
by KHDT October 8, 2010
When you can't play basketball because you're sitting on the couch naked eating grapes and hoping to score with the lesbians that moved in under you.
I asked Justin if he wanted to play a game of basketball but he said he was too grumbed out. That's whack.
by JAGDrummer March 5, 2012
by klam February 1, 2006
by ButterSpreadBread December 23, 2019
A small otherworldly creature that fits in the palm of your hand. The humans of this world hunt grumbs in the spring (prime Grumb season) but only the bravest of adventures venture into the retarded forest (home to all horrific otherworldly beings)
"No son of mine shall venture into the retarded forest"
"If you want safe passage through the retarded forest you must pay me 3 Grumbs"
"Couldn't pay me a Grumb to do that"
"If you want safe passage through the retarded forest you must pay me 3 Grumbs"
"Couldn't pay me a Grumb to do that"
by Grimnir14-1 April 16, 2023