jolt / jōlt/ • v. [tr.] push or shake (someone or something) abruptly and roughly: a surge in the crowd behind him jolted him forward. ∎ fig. give a surprise or shock to (someone) in order to make them act or change: she tried to jolt him out of his depression. ∎ [intr.] move with sudden lurches: the train jolted into motion. • n. an abrupt rough or violent movement. ∎ a surprise or shock, esp. of an unpleasant kind and often manifested physically: that information gave her a severe jolt. DERIVATIVES: jolt·y adj.