Gemper is the term used by an illiterate or lazy console gamer that decides to insult someone who may or may not have been camping in a console game.

Gemper originally stems from Camper but is reprocessed into Gemper after a small aneurysm in the brain, resulting in dysphasia and the resulting in Gemper.
"Stop gemping with the 1000 yard stare you gemper!"
by UHI April 21, 2016
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