Gym Bunny Meaning

(idiomatic, colloquial, bodybuilding) A person who spends a large amount of time working out at a gym and who may be obsessed with improving his or her physique. Often said of a gay man, but also said of women and heterosexual men.

Example: 2002, Dan Anderson, Sex Tips for Gay Guys‎[1], ISBN 0312288735, pages 129, 130:
  Unlike sex with a Leatherman or a Sugar Daddy, when you have sex with a Gym Bunny, you will probably have to keep reminding yourself that there are actually two people present. …The GB spends just about all of his spare time sculpting his ever-more-fabulous body, and just about all of his spare income on ever-more-skimpy gym outfits.
2006, Catherine Coulter, Born to Be Wild‎[2], ISBN 0515142395, page 243:
  "...this scrap heap of a gym bunny you don't want to sit too close to before she showers is a TV goddess?"
2006, Tim Edwards, Cultures of Masculinity‎[3], ISBN 1134452454, page 137:
  Thus the lithe and slightly feminised John Travolta of Saturday Night Fever is transformed into the pumping, grinding-body-obsessed gym bunny of Staying Alive.