Funny roller derby mom definition design. This funny design makes a great thank you gift for a roller derby mom friend, coworker, family member, women, girlfriend, wife, sister who's been supporting roller derby daughters and sons since forever. Roller Derby Mom Like a Normal Mom Only Way Cooler. Clean, cool, modern typography design roller skating athlete skate sport design perfect for making mom laugh and cry. Lightweight, Classic fit, Double-needle sleeve and bottom hem