A workout performed by vain, mostly homosexual men immediately prior to an event where one's looks are important, e.g. an outing at a nightclub or day at the beach. The objective of a disco workout is to pump up your muscles so that you look your best for the event; it is done purely for cosmetic effects and not for any health or strength benefits.
"Bruce and Alejandro knew they were going to the beach later that day, so they squeezed in a disco workout that morning so that they'd look good in their speedos."
by Rabozicus December 18, 2009
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