A nickname for a senior ranking non-commissioned officer in the United States Marine Corps with the pay-grade of E7 and the rank of Gunnery Sergeant. This nickname's usage, often used as a term of respect, is determined by the GSgt.
LCorporal: Hey, gunny?
LCorporal: Pyle took a **** in the M998. AGAIN!
GSgt: Picks up Kabar knife
The United States Coast Guard, a life-saving and law-enforcement service, was established as the Revenue Cutter Service in 1790. Currently, it is a branch of the US military, though it is regulated by the Department of Homeland Security. It is often disparaged as being made up of "Navy rejects," but is a vital part of the security strategy of the United States of America
Navy Seaman: You Coasties are Navy rejects!
United States Coast Guard CPO: Yeah, well, we've got the better uniforms. Fuckin' sailorhat wearing loser.