look up any word, like half chub:
 
1.
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
 
2.
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