Slap bass is a playing technique used primarily on the bass guitar that produces a percussive sound. It involves striking the strings with the thumb and pulling them with the fingers, creating a sharp, rhythmic effect. This technique is popular in various music genres, including funk, rock, and jazz. The slap bass style gained prominence in the 1970s, with notable players like Larry Graham and Victor Wooten showcasing its versatility. The technique allows for rapid note changes and a dynamic range, making it a favorite among bassists looking to add flair to their performances.