Someone at the gym who obviously is not serious about exercising and annoyingly hogs machines and weights that more serious people need to use. Categories include: (a) fat people who are super slow and put forth no effort; (b) people who only use the treadmill to slow-walk; (c) annoying people who can't put their phones down the entire time they're there; (d) people who do nothing but talk and socialize the entire time
Person A: This annoying fat-ass at the gym took forever on the treadmill and never even got up to a speed of 1.0

Person B: "Yup. Clearly he is the typical gympersonator you see there after Christmas."
by Screw Liberals May 7, 2016
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An annoying person at a fitness club who takes forever on a machine, bench, or a specific area that a serious fitness member needs to use, and while doing so consistently exerts ridiculously little effort. (These pricks usually were guilted into going in the first place and drastically reduce in number after January 1st.)
"All the treadmills are taken. I wish that fat gympersonator would get the hell off since she's been on that one for 30 minutes and only walked 1/10th of a mile."
by Screw Liberals April 4, 2016
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