mut‧ton /ˈmʌtn/
noun[
Date: 1200-1300;
Language: Old French;
Origin: moton '(male) sheep']
1. [uncountable] the meat from a sheep ⇒
lamb2. mutton dressed as lamb British English used to describe, in a disapproving way, someone who is wearing clothes that are usually worn by younger people
[TahlilGaran] Dictionary of Contemporary English ▲