A tropical fruit. It's found in the Carribean, and I've only had it on St. Thomas. It's a bit smaller than a golf ball, has a thin, tough green skin, and there is a pit on the inside. It grows during hurricane season (summer) and can be picked at the end of hurricane season (september). It tastes like a combination of a lime and a peach.
There are gnips growing on that tree, let's go pick some!
by LaMcQ December 22, 2006
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Simply put, Ping Pong spelled backwards. Slang and humorous word used instead of "Ping Pong".

Origin: Mansfield University, PA
"You boys up for a game of gnip gnop?"
by Ryan D. Cooper October 8, 2005
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