jolt

Short definition from Wiktionary

Verb

1. 1
   To push or shake abruptly and roughly.
2. 2
   To knock sharply
3. 3
   To shock (someone) into taking action or being alert
4. 4
   To shock emotionally.
5. 5
   To shake; to move with a series of jerks.

Noun

1. 1
   An act of jolting.
2. 2
   A surprise or shock.
3. 3
   A long prison sentence.
4. 4
   A narcotic injection.