To be overly excited, hyper, obnoxious, or completely insane.
Guy 1: HAHAHAHAHAAHAHAH
Guy 2: Dude, calm down. You're being groot as hell.
by Lucubriousness February 25, 2009
1. A term used to describe a man who has a deformed penis, not too dissimilar to a tree branch.

2. Also used in much th same way as twat as an offensive term.
1. Hahahaha, he has a groot

2. Some fukin groot has nicked me fuckin wheels
by spluh January 26, 2006
to be swoll, buff, fit, athletic, and/or big. to attain muscle
"Dude you are looking groot today"
"You wanna hit the gym and get groot?"
by hyperassnigga123 August 13, 2015
cute ass motherfucker that saved the guardians of the galaxy that one time and then turned into a cuter motherfucker after he died and danced to “i want you back” by the jackson 5
i am groot
by harambewasalie August 11, 2016
having a special relationship with a person whose name is usually Tina
lets groot

he's a grooter
by grooter99 July 28, 2009
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