Top Definition
A person(usually an asshole and or bitch) who does something or says something behind someone else's back (usually a good friend) They are usually two-faced, deceitful,and very snobby.
Alex: That Jamie girl is such a back stabbinng jungle jack.
Jeff: Ya i heard she hooked up with your boyfriend.
by Matticus Harperica December 12, 2008
7 Words related to Jungle Jack

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