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someone (usually a girl) who likes to hook up with athletes
Did you hear Jane's hooked up with half the soccer team?

Yeah, she's always been an athletic supporter.
by Ben in Brooklyn April 05, 2008
elastic band with leg straps and pouch to support male genitals
I wear an athletic supporterL: see also "JOCK"
by chief masta bata x July 22, 2003