shocker

From shock +‎ -er.

shocker (plural shockers)

(colloquial) One who or that which shocks or startles.
The election results were a real shocker.
A device for giving electric shocks.
- 2004, Nintendo EAD, Pikmin 2, Nintendo (Treasure Hoard: Shock Therapist):
  Olimar: 'This shocker was one of several weapons wielded by the nightmarish titan dweevil. It allowed the creature to smite Pikmin with zaps of lightning!'
- 2007, David W. Thompson, A Stranger's Journey, page 87:
  Recently, the family decided that some obedience training would be of great value. The cost of doggie school being what it is, my daughter opted to purchase a shocker collar instead.
(colloquial) Something done very badly.
My performance today was an absolute shocker, I just wasn't feeling it.
(agriculture, rare) Synonym of stooker.
- 1923, U.S. Department of Agriculture, Office of Experiment Stations, “Rural engineering”, in Experiment Station Record‎, volume 48, page 186:
  The mechanical shocker is attached to the ordinary binder by two tubular stays, the more important one passing from about the center of the bull wheel and supporting a chain and sprocket wheel which transmit the drive to the shocker.
(slang, vulgar, colloquial) An offensive hand gesture suggesting two in the pink, one in the stink.

shocker (hand gesture) on Wikipedia

(colloquial) one who or that which shocks or startles

a device for giving electric shocks

English