Gunnery Sergeant in the Marine Corps. Usually the boss of the Marines that are associated with him/her.
Gunny Hipe is gonna chew my ass for being late!
A mysterious person who will continually be unknown to us (Urban Dictionary Readers), since we can't call him/her out by name. We only know that he/she has a computer with the internet and he/she decides who has the hottest definitions.
I hope I get a bunch of "thumbs ups" by the mysterious Urban Dictionary's Top Editor.