An adventure story or film with swashbuckling action is full of excitement and bravery. It's often about heroes who fight and sail on ships.
In movies, books, and even some games, "swashbuckling" is used to describe an exciting and thrilling scene where a hero fights bravely against many enemies. Pirates are often the stars of swashbuckling adventures. Think swordfights on beaches or duels between rival captains on deck. The word doesn't just apply to pirates though - it can also be used for any type of action-packed scene with a sense of danger and excitement, like in a medieval battle film.
Adventurous, exciting.
