A Jazz Monster occurs when someone is completely ripped and imagines a mysterious monster tying to attack them. It is often considered your a champ if you see the Jazz Monster when stoned.
Person 1: I just smoked a shit load of pot.
Person 2: Dude
Person 1: Yer, Oh no the Jazz Monsters going to attack me
Person 2: Your a champ!
by OodsOner May 16, 2009
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