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sweat under one's breasts (sweat + boob = swoob)
The combination of the hot day and the tight sports bra created a serious swoob problem for Alicia.
by Myth31 August 11, 2003
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When boobs get sweaty, underneath and/or in between.
Guy: Oh man, its hot out today. I got swalls over here.

Girl: I hear ya, I got some swoobs goin on.
by Wicked Pissa Melissa April 28, 2009
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When it is knarly hot and you have a profuse sweat going onunder your breasts.

Sweaty + Boobs= Swoobs
I have a serious case of the swoobs.
by Chenze August 28, 2006
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Them damn sweaty boobs is what swoobs means. Like when girl comes up to you with a nice bust but they are all sweaty and wet and the rest of her isn't sweaty, that's swoobs.
Wow! Did you see that babe that had those gross ass swoobs?
by Mos Def And Kweli are Blackstar February 25, 2005
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