"Tart yourself up" is a colloquial expression used to indicate the act of dressing up or putting on makeup, especially in an ostentatious way. This phrase can be substituted with other words like "primp," "preen," "furbish," or "gussy up." These words imply a certain level of excessive attention to one's appearance and are usually associated with glamming up for a special event or occasion. Some other phrases that can be used instead of "tart yourself up" include "doll yourself up," "deck yourself out," or "dress to impress." Regardless of which phrase is used, they all connote the same notion of dressing up in a fancy or flamboyant manner.