OpenB@SideChesthigh-PalmForward BentB@SideChesthigh-PalmForward

Production

 * Flap the four fingers up and down as a group to form the "Bent B" handshape repeatedly.
 * Flap the four fingers up and down as a group to form the "Bent B" handshape repeatedly.
 * Flap the four fingers up and down as a group to form the "Bent B" handshape repeatedly.

Noun

 * 1) bye; farewell; goodbye