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.'"