Top Definition
VERB: Also known as SBA, the stationary action of the breasts of a female caused by a sports bra when said female runs or works out.
Hey, check out all that stationary boob action on the track field today. Those sports bra sure keep the boobs nice ans stationary as all those fine females run about. Mmm mmm mmm.
by Dr. Knowitmores March 30, 2011

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