Top Definition
A Best Friend, with too many inside jokes to count. A crazy person you couldn't survive without.
Oh thank g-d! There is my Gyper! I need to vent!
by Hifib January 03, 2012
The act of being both gay and hyper at the same time
Carol: I lost 20 lbs over the summer using "Sweating to the oldies". You should try it.

Joan: Hell no, Richard Simmonz is WAY to gyper for me.
by Tsarith April 24, 2009
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