runcible UK /ˈɹʌnsɪb(ə)l/US /ˈɹʌnsəbəl/ adjective1 •(humorous) A nonce word used for humorous effect.The Dolomphious Duck, / who caught Spotted Frogs for her dinner / with a Runcible Spoon. […] The Rural Runcible Raven, / who wore a White Wig and flew away / with the Carpet Broom. — 1872