When used in the expression "to be a grapefruit" it means being a third wheel, the spare part, feeling left out or excluded, as is the case if you go out with a group of couples.
It turned out to be a double date--James was supposed to come along but when he found out that both my and John's girlfriends were coming along, he decided he didn't want to be a grapefruit.
by malathia February 23, 2006

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When Tripping on mushrooms... when your first wave of tripping hits. Also, when your in conversation and you lose all train of thought, you can explain yourself with saying "grapefuit"
and then i asked her if.... and... ummm.... woah... grapefruit!
by braddy bra July 08, 2010

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A large and firm female breast.
My that girl is a slacker but she has lovely grapefruit!
by BobFV August 22, 2003

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To give those around you the impression that you are in a deep conversation in public places. Usually only conferring between two people sharing the "grapefruit"
person A: grapefruit
person B: ohhh, yeah! -winkwinknudgenudge-
by Yeah man July 08, 2005

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term used to describe a pair of big ass titties,
they look something like this ( . )( . )
damn, i'd like to suck those grapefruits
by screwster May 11, 2005

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the only fruit that might get your hand chopped off
"Get yo' ashy hands up off my grapefruit!!"
by knox April 17, 2005

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-An asian girl who think she's Latin. Yellow on the outside and Red on the inside. She wears a puffy bubble black or white North Face Jacket, baggy t-shirt and tight jeans. Also wears 5 inch thick shoes, girly colored sneakers or boots. Can sometimes be seen wearing DKNY, Ecko, J-Lo. Most likely carries a women’s backpack. Also, like Rap and R and B and J-lo associated paraphenelia.
-An Asian Girl who sorta looks Latin, like my mom.
-A filipino
Man, is she a grapfruit?
by Beetle Bailey Show March 04, 2003

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