slang. Obs. rare–0. [Perh. f. LOON1 + SLATT (slang) half-crown.] A name for the Scottish merk, the value of which in the 17th c. was 131/2 d., the proverbial amount of the hangman’s fee. (Cf. quot. 1785 s.v. HANGMAN.)
a. 1700. B. E., Dict. Cant. Crew, Loon-slatt, a Thirteen Pence half Penny.
