🔗 No Soap, Radio

"No soap radio" is a form of practical joke and an example of surreal comedy. The joke is a prank whereby the punch line has no relation to the body of the joke; but participants in the prank pretend otherwise. The effect is to either trick someone into laughing along as if they "get it" or to ridicule them for not understanding.

The joke became popular in New York in the 1950s. The punch line is known for its use as a basic sociological and psychological experiment, specifically relating to mob mentality and the pressure to conform. The basic setup is similar to the Asch conformity experiments, in which people showed a proclivity to agree with a group despite their own judgments.