Its the sound you make when you get punched in the groin.
Aww you made me grorange, you bitch.
by Liane 742 April 02, 2006
Defined, it means the genetic splicing of a grape and an orange, but it's importance comes from the oddness of saying the word. It may be the funniest word to say out loud.
I charged the machine gun yelling, "GRORANGE!" to confuse the enemy.
by gomer May 06, 2003