Triple 15 comes from Autodarts, the camera-based automatic scoring system for steel-tip darts, where T15 is the standard shorthand for the treble 15 segment. Players use the system for online matches and practice at home, and its short spoken callouts are often captured from screen recordings and shared as isolated clips. The triple 15 is a common alternative target when the treble 20 route is crowded, worth 45 points from a single dart. Clips like this circulate among darts creators who reuse the official-sounding call to label replays, checkouts and scoring sequences without recording their own commentary.