swoller derby means: Noun, SWOHL-r DER-bee 1. Grandiose events where feats of strength and beauty are displayed, with the clear goal of winning some swole. If it’s done in public with the clear goal of drawing attention, a swoller derby will not be considered a swoller fest. 2. Marathon gym sessions in which every imaginable lift is performed with energy. 3. These are the daily events that occur almost every day at Muscle Beach, Venice, CA. (in Community Dictionary, added by Makayla Ponce)