The pools of sweat collected under large breasts. Usually under larger women's voluptuous bosoms. known to cause interesting sweat designs in t-shirts and can cause a number of problems.
bro did you check out the underboob sweat on that one over there?
yeah bro the design is kinda trippy!
yeah bro the design is kinda trippy!
by the utter definition June 11, 2014
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