splurge

nouns

an ostentatious display (of effort or extravagance etc.)
splurge
is a type of (narrower)
a gaudy outward display
fanfare, flash, ostentation
any act of immoderate indulgence
"an orgy of shopping"; "an emotional binge"; "a splurge of spending"
binge, orgy, splurge

verbs

indulge oneself
"I splurged on a new TV"
fling, splurge
be showy or ostentatious
splurge
is a type of (narrower)
display proudly; act ostentatiously or pretentiously
"he showed off his new sports car"
flash, flaunt, ostentate, show off, swank