The world's frist electric bass guitar. Manufactured by Fender, starting in 1951 (not '58, as the previous definition said). Often imitated by cheap Asian brands that wouldn't know a thing about making a guitar. Slang term is P-Bass. Has a brother, the Jazz Bass, introduced in 1962(?)
Dee Dee Ramone often played a white early '60s model Fender P-Bass.