At a frat party when a female with large breasts is wearing a low cut shirt for everyone to see.
Man did you see that chick?

Yea her yam yams are huge!!
by Chim March 26, 2008
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Cocaine, The White Pony, That Soft. The slang term "columbian yam yam" was invented by C Woods from Pompton.
DeAndre: yo you got trees?
B-Dog: nah but dem boys got dat columbian yam yam up the way. Shit is raw and ain't stepped on neither my du'.
by CWoods January 21, 2014
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The act of licking another person from side to side along the longest part of each butt cheek without lifting your tongue. yam to yam Y2Y
Ray : Damn! Chema, let me go yam to yam!

Chema : Damn dog! From cheek to cheek? What if I clench?
by Saucy! September 6, 2018
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secret code for feisty but sexy girls.
"Oh GAWD, she's suchha yam yam!"
by liltoad September 7, 2020
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