nice, good, clean, well kept. in a word , gabby.
Gabby ain't a grimy bastard like Scott. He's yum yums.
by Sidenote October 9, 2006
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The fun name for a position in Tantric Yoga.
The Yum Yum postion is where both man and woman sitting on the floor (the woman in his lap), both are naked, facing each other and embrassing.

There is a Partial Yum Yum but the Full Yum Yum is more fun.
by Robin White November 2, 2006
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1: said to a hot girl showing that you think she's hot 2: a hot girl wearing tight clothing
Hi, you look very yum yum today.
by Bubasaur November 17, 2010
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1. (n) An objective scale used to measure the amount of delicious flavor of a food or person.

2. (adj) Deliciousness
On a yumness scale from one to ten, this pizza is a 100!
by kingxerxesofpersia December 16, 2013
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The state of being attracted to someone, usually a friend or friend's friend, particularly when this is a chronic, unrequited, but mostly harmless condition.
Do you still have a thing for your sister's ex?

Yeah, but it's okay; it's just a mild case of the yums.
by AmandaQuirky1 January 9, 2009
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