(military, US) A non-commissioned officer of rank E-9 in the United States Marine Corps, ranking above a master sergeant/first sergeant and below a warrant officer. It is equal in grade to sergeant major

plural of master gunnery sergeant

(slang, figuratively) A person who takes part in long sessions of love making.

Alternative form of lovemaking

(countable, idiomatic, vulgar, slang) A pointless competition, dispute or conflict, often over some trivial matter.

(informal) I don't know; I have no idea.

(economics) The system or infrastructure for economic exchange within which factors of production (such as labor, materials, or capital) are purchased or sold.

(transitive) to set the boundaries of an area / (transitive) to classify / (transitive) to obliterate or cancel with a mark / (transitive) to distinguish

simple past tense and past participle of make someone's jaw drop

simple past tense and past participle of make matters worse