But Spode is a character from pure planet Wodehouse—just as much as Aunt Agatha or gussy Fink-Nottle.
If we are to judge folk by their wames, gussy pig gruntin' in the trough wad be king o' men.
gussy, I strongly advise you to start wearing a tickler now.
Will try Haddon for Savoy, and anything in the world you like, if you can get gussy.
gussy 'pares in the background and givs the gals $5 to danse a bally for his own speshell benerfit.
Dear gussy,—I hope you are not very savage with me for not writing sooner.
"Dear gussy" cried for spite, and stamped her way out of the room, followed by Furlong.
I am very glad to hear that you and gussy are both at all events a little better at last.
The gals then go thru a lot of moshuns, dansin the racket, and gussy sets 'em up.
“Certainly I will, gussy,” Fay continued in the same ebullient tones.
"to dress up or decorate in a showy way," 1952, American English slang, apparently from Gussy (1940), schoolyard slang name for an overly dressed person, perhaps related to gussie (1901) "effeminate man," and somehow connected to the nickname for Augusta and Augustus.