swashbuckle

[ swosh-buhk-uh l, swawsh- ]
/ ˈswɒʃˌbʌk əl, ˈswɔʃ- /

verb (used without object), swash·buck·led, swash·buck·ling.

to work, behave, or perform as a swashbuckler.

Origin of swashbuckle

First recorded in 1895–1900; back formation from swashbuckler