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The smaller than normal boobs one finds on "sporty" girls who usually play soccer or swim (usually between a size A and B cup). They are not so small as to be unnoticed, but not large enough to be an asset.
Kim's soccer boobs are kind of cute, but her eyes are her best asset.
by Tom Fool August 12, 2007
A pair of old,saggy breasts that can be used as a tool for solo soccer practice.
Millie's soccerboobs were showing after she stretched; lifting her dress.
by John Diss August 08, 2006