dicky dirt

slang A shirt. The phrase comes from rhyming slang in which "dicky dirt" rhymes with "shirt." Primarily heard in UK. You don't even have your dicky dirt on yet? Come on, man, it's almost time to leave! Can you answer the door? Someone's knocking and I haven't got a dicky dirt on—or pants, for that matter! A: "So that's the dicky dirt you plan to wear with that jacket?" B: "Mum!" A: "What? It's just a question."