The Engineer is one of the nine playable classes in Valve's team shooter Team Fortress 2, a laid-back Texan inventor known for building sentries, dispensers, and teleporters. His cheerful, drawling voice lines became popular with players and editors, who lifted short clips like this yeehaw for soundboards, reaction videos, and gaming montages. Because the character's accent and attitude are so distinctive, the sound still works instantly as shorthand for a clever build, a Southern-style celebration, or a job done right.