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One who tries hard, and is a suck-up, but is actually the most messed up kid
That kid in our science is such a greeno.
by thegrabber November 30, 2010
V: Green-o'd
N: Green-o

To put an end to, to epicly massacre someone or something.
"Wow you just greeno'd that joke"-V

"That kid is such a green-o, he always kills jokes."-N

"Why did you just green-o my mom, thats just gross!"-Adj.
by Track April 24, 2005