a jumpoff is something exclusive, anything thats hot,brand new or something everyone wants.
go get me the new jordan "jumpoffs" from foot locker

what u know about these "jumpoffs"?( point to the new doritos that came out)
by dtowngurl84 November 2, 2008
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a hot item; a really cool item or thing
damn, that coogi sweater is the jumpoff!
by M1CHAEL September 8, 2005
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Philly/NYC slang which is rapidly replacing the word "jawn", which essentialy means "thing".
Damn, look at the rims on that jumpoff.
by Nelly October 3, 2004
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n. something good or positive. when you approve of something, it is called the jumpoff.
Plastic Little: "your HIV test comes back positive, but chill out, cause on further tests you find out that shit's negative, that the jumpoff!"
by SpicyMcHaggis241 January 16, 2008
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