intransitive verb-·sied, -·sy·ing
Slang to dress (up) or decorate in a fine or showy way
Origin of gussyfrom uncertain or unknown; perhaps
transitive verbgus·sied, gus·sy·ing, gus·sies Slang
To dress or decorate elaborately; adorn or embellish: gussied herself up in sequins and feathers.
Origin of gussyPerhaps from Australian slang gussie an effeminate man from Gussie diminutive of the personal name Augustus