(colloquial) One who or that which shocks or startles.

A device for giving electric shocks.

(colloquial) Something done really badly.

(agriculture, rare) Synonym of stooker.

(slang, vulgar, colloquial) A particular hand gesture with a sexual connotation.

(slang, vulgar, colloquial) Sexual act related to the shocker hand gesture: two in the pink, one in the stink.