(military, US) A non-commissioned officer of rank E-7 in the United States Marine Corps, ranking above a staff sergeant and below a master sergeant or first sergeant.
No comments yet — say something.
Add your own interpretation of "gunnery sergeant".
Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
See all Regional & Other slang on Slangora.