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1.
I understand what you are communicating. You can't fool me.
The wording may be slightly off because alta vista was having some translation problems the day I tried.
Also see hip and jive
I am reeeeeeal old and I still want you too think I am cool. So when I hear you using slang terms, that I have no idea whatsoever the meaning of, I will say, "I'm hip to the jive baby".
by qqtpie September 08, 2005
 
2.
Jazz age slang meaning: cool, trendy
Hot Dawg, that dame you introduced me to sure is hip to the jive!
by Sunshine!❊! August 04, 2011