the.com/swashbuckler

means A flamboyant, daring adventurer — especially the swaggering swordsman type — who favors bold action and theatrical bravado over caution.

from Born from two blunt words smashed together: 'swash,' meaning to swagger or make a noisy, slashing sound, and 'buckler,' a small shield. A swashbuckler was literally someone who banged his sword against his buckler to make a show of swagger and threat — all noise and nerve, the 16th-century equivalent of rattling your sabre to look tough before the fight even starts.