From Longman Dictionary of Contemporary Englishtart something ↔ up phrasal verb British English informal1 DECORATEto try to make something more attractive by decorating it, often in a way that other people think is cheap or ugly We’ll need to tart the place up a bit.2 BEAUTIFUL/GOOD-LOOKING tart yourself up/get tarted up if a woman tarts herself up or gets tarted up, she tries to make herself look attractive by putting on nice clothes, make-up etc – often used humorously She got all tarted up for the party. → tart→ See Verb table
