The pirate flag (Jolly Roger) — a black flag with skull and crossbones, used for pirate-themed content, playful rebellion, or captioning any chaotic/rule-breaking behavior. "Jolly Roger" as a name predates any single flag design and was used generically for various skull-and-bone pirate flags flown by different real 18th-century pirate captains, each often with their own unique variant.
Keywords: flag, Jolly, pirate, plunder, Roger, treasure