rig-out

(noun) a person's costume (especially if bizarre). Synonyms: rigout. Example: "What a queer rigout!."

(verb) put on special clothes to appear particularly appealing and attractive. Synonyms: overdress, dress up, fig out, fig up, deck up, gussy up, fancy up, trick up, deck out, trick out, prink, attire, get up, rig out, tog up, tog out. Examples: "She never dresses up, even when she goes to the opera." "The young girls were all fancied up for the party."