McLuhan was credited with coining the phrase Turn on, tune in, drop out by its popularizer, Timothy Leary, in the 1960s. In a 1988 interview with Neil Strauss, Leary stated that the slogan was "given to him" by McLuhan during a lunch in New York City. Leary said McLuhan "was very much interested in ideas and marketing, and he started singing something like, 'Psychedelics hit the spot / Five hundred micrograms, that’s a lot,' to the tune of a Pepsi commercial. Then he started going, 'Tune in, turn on, and drop out.'"
McLuhan was credited with coining the phrase Turn on, tune in, drop out by its popularizer, Timothy Leary, in the 1960s. In a 1988 interview with Neil Strauss, Leary stated that the slogan was "given to him" by McLuhan during a lunch in New York City. Leary said McLuhan "was very much interested in ideas and marketing, and he started singing something like, 'Psychedelics hit the spot / Five hundred micrograms, that’s a lot,' to the tune of a Pepsi commercial. Then he started going, 'Tune in, turn on, and drop out.'"