frock UK /fɹɒk/US /fɹɑk/noun 5verb 3forms 3 noun5 •A dress, a piece of clothing, which consists of a skirt and a cover for the upper body. •An outer garment worn by priests and other clericals; a habit. •A sailor's jersey. •An undress regimental coat. •(dialect) A frog. verb3 •To clothe (somebody) in a frock.[…] Mrs. Parmly-Coles, in thus frocking her daughter, was no jealous cat but a pearl among mothers. — 1935 •(US) To grant to an officer the title and uniform of a rank he will soon be promoted to.MajGen Richard G. Schulze […] was selected for two-star rank by members of the January selection board. He was frocked on 27 Jan and assigned new duties as CG, MCRD, San Diego. — 1976 •To make (somebody) a cleric. formsfrocked · frocking · frocks