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A catch-all diagnosis gym rats use to describe their injuries. Liftitis includes anything from tendonitis, to torn muscles, to broken bones.
Joe: Hey, I'm hitting up the gym tonight around seven, you coming?

Brian: I would, man, but I got liftitis bad in my shoulder. Gonna have to chill for a couple weeks.

Joe: Why don't you go to a doctor, man?

Brian: Why waste the money? All he's gonna tell me to do is ice it and stop lifting. Everyone knows that's how you treat liftitis.
by Laezu May 28, 2010
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Literally everyone, ever. Including the writer of this definition.
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