Saturday-night special

[ sat-er-dey-nahyt, -dee- ]
/ ˈsæt ər deɪˌnaɪt, -di- /

noun Informal.

a cheap, small-caliber handgun that is easily obtainable and concealable.

Origin of Saturday-night special

First recorded in 1965–70

British Dictionary definitions for saturday night special

Saturday night special

noun

US informal a small handgun that is cheap and easy to buy