Just Say No T-ShirtThis 80sTees. com exclusive t shirt features the logo for the "Just Say No" slogan, which was an advertising campaign in the 1980s as a part of the U. S. "War on Drugs", aiming to discourage children from engaging in illegal recreational drug use. In 1982, the phrase "Just Say No" first emerged when Nancy Reagan was visiting a school in California. When asked by a schoolgirl what to do if she was offered drugs, the First Lady responded: "Just say no."