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Songs and music. Describes Hip hop, rap, R&B songs -- as on radio.
Radio Station plays the hottest jamz.
by Michael Hughes June 07, 2004
A word that can replace "cool", "sick", and "ok".

That's jamz (for thats cool).
Jamz (by itself as a response to anyone statement)
Epic Jamz (something is really awesome)

Jamz can be added before or after any other slew of slang words and can mean whatever you want.
did not realize there was an extra box for examples
by gorditocrunch January 18, 2011
The Don A.K.A Bowss
Look Theres Jamz Being the Don
by Dale February 05, 2004