[f. JOLT v. + -ER1.] One who or that which jolts; a jolting carriage.

1

1611.  Cotgr., Secoueur, a shaker, tosser, swinger, ioulter.

2

1852.  R. S. Surtees, Sponge’s Sp. Tour (1893), 146. It was two o’clock before Mr. Spraggon was again in his jolter.

3