Top definition
Jum is a word my sisters and I made up and we basically use it as a filler when we don't know what word to use...we use it so often our friends, parents, and even some teachers have taken to using the term. Here are some ways to use it:
1. (n) stuff, crap, junk, things etc.(usually with a negative connotation)
2. (adj) Very, extremely. often used in the phrase "jum good"
3. basically a filler word..may be used in places of "hell" or "heck."
1. You should probably get your JUM out of my locker, I can't fit my nunchucks.
OR
There was some sticky JUM at the bottom of the cup.

2. That orange juice was JUM good!Extra pulpy!

3.What the JUM was that?
OR
Get the JUM out of my way.
OR
I don't give a JUM what you think.
by BECCA! WHAT TH E JUM! May 04, 2005
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2
Small amounts of crack cocaine or heroin sold on the street to clientele usually in the form of dimes and twenty's.
My clique is hustlin' jums to survive.

I stay with at least 10 jums to serve customers.
by Vindictive June 09, 2007
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3
by jummy June 11, 2004
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4
The excess, jiggly skin attached to the lips of a dog.
I can't figure out why Snoop doesn't bite her jums when she chews on a bone.

Look at those jums jiggle.
by BIMby February 20, 2011
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5
A crack rock, typically $20 worth.
I sold your mom 2 jums yesterday for $35.
by Bliggs February 22, 2010
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6
Jum refers to the front counter bitch of any RETAIL job, typically has blonde hair w/ Black eyebrows
So you're the JUM today?
by Jum-Isaac September 28, 2015
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7
The concoction resulting from the act of "jumming" (ejaculating in someone else's juice). Combination of the words "juice" and "cum."
Glenn: Dude, I totally jizzed in your juicebox. Haha!
Band Geek: Not cool. First my mouthpiece, now this jum? I hate you!
by LeonidasWV December 28, 2005
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