A contraction of "Jewish Mexican" which is also conveniently the name of a company which produces fruit and nectar drinks.
"Jumex? What the hell is that? A Mexican guy named 'Carlos Goldstein?'"
by Ted Isog May 02, 2005
a great drink that contains various fruit juices,water, and sugar.it is usually found in Price Chopper stores.comes in strawberry,strawberry banana,mango,tamarindo,peach, etc.
i went down to price chopper and got 2 jumex's for a dollar.
by david aka Whiteboy February 20, 2005
The name for a "Jewish Mexican", Jewish as in the terminology when one "Acts like a Jew", a.k.a., a total and complete Douchebag. Of course, they need to be a beaner as well, hence the "Mex", but that's secondary, which is why it's second in chronological order.
"That god damned beaner just hopped over my fence. Fucking Jumex."
by DocsManCave June 19, 2009