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A word that describes that one asshole that thinks hes tough shit everyone notices while trying to work out at the gym because he makes ridiculously loud noises (usually resembling the sound someone makes while trying to take a shit while constipated and/or while masturbating) while lifting only a mild amount of weight.

Usually the type of person who is desperate for attention and gets it by acting like a complete idiot at the gym.
"I swear if that gymster doesn't shut the fuck up I'm going to kill him."

"Gymsters are starved for attention"

"That guy is lifting 50lbs and acting like hes Arnold "
"Yeah what a gymster"

"Sounds like someone is having an orgasm over there. wtf?"
"Its just the local gymster. Don't mind him."
by alfsdjkk May 25, 2013
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2
Someone who thinks they know more about the gym then everyone else. They also have been doing diet and work out plans before these plans were cool and trendy. Gymsters also hate individuals that start going to the gym the day after New Year's Eve the, and only go for two weeks and quit; also known as "New years resolutioners".
" So I started going to this trainer at my gym, and my boyfriend says he has no idea what he's talking about. Gosh, my boyfriend is being such a (Gymsters)."
by Miss Rae 2016 October 15, 2016
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