1. slap-back - Noun
2. slap-back - Adjective
slap-back (comparative more slap-back, superlative most slap-back)
(music) when bass strings are slapped rather plucked individually.
slap-back (plural slap-backs)
(aerial freestyle skiing) a faulty landing, whereby the skier rotates backwards around the knee-joint and hits the snow of the landing slope with their back and head, before rising off the snow back into position with their skis underneath them.
Slap-back bass, one identifying characteristic of rockabilly, was used on the Comets' recordings of "Rocket 88", "Rock the Joint", "Rock Around the Clock", and "Shake, Rattle, and Roll". Source: Internet
Slap-back bass was a necessity for the group, because in its early years (prior to the fall of 1952), it did not feature a stage drummer, so the bass provided percussion in addition to the bass line. Source: Internet
Slap-back had been used by bassist Al Rex, although to a lesser extent, on the Saddlemen's "Yodel Your Blues Away". Source: Internet