deck_out
1. [ verb ] (clothing) put on special clothes to appear particularly appealing and attractive
Synonyms: dress_up trick_out get_up prink gussy_up deck_up fancy_up trick_up attire fig_up rig_out tog_up tog_out overdress fig_out
Examples:

"She never dresses up, even when she goes to the opera" "The young girls were all fancied up for the party"

Related terms: dress_down dress preen prank enrobe tart_up bedizen dress dress costume attire outfit