#9: Safe Sex

"The best way to stop the spread of deadly AIDS is for the government to persuade Americans to 'develop a socially acceptable type of sex – safe sex,' the head of the Centers for Disease Control said Sunday." — Sean McCormally, United Press International, August 11, 1985

After first appearing in print in 1983, safe sex became a watchword of the decade.

Merriam-Webster dispassionately defines it as, "sexual activity and especially sexual intercourse in which various measures (as the use of latex condoms or the practice of monogamy) are taken to avoid disease (as AIDS) transmitted by sexual contact."