Wiktionary
gussy up
vb. (context informal English) To don fancy clothing; to dress up particularly in flattering or specially altered garments.
WordNet
gussy up
v. put on special clothes to appear particularly appealing and attractive; "She never dresses up, even when she goes to the opera"; "The young girls were all fancied up for the party" [syn: dress up, fig out, fig up, deck up, fancy up, trick up, deck out, trick out, prink, attire, get up, rig out, tog up, tog out, overdress] [ant: dress down]