coat and badge
1. noun
► on the coat and badgescrounging; on the cadge. Rhyming slang, from the verb COAT AND BADGE (to cadge) UK, 1960
2. verb
to cadge something. Rhyming slang, formed on Doggett's Coat and Badge Race, the oldest annual sporting event in Britain, a boat race from London Bridge to Chelsea, first contested by Thames watermen in 1715 and continuing still UK, 1936