1. The sex act or sexual activity in general.
2. Wooing; lovemaking. Also a term of endearment to a loved one. In both examples that follow, it is not quite clear if the actors are saying nooky or mooky : (1) At the end of Sex and the Single Girl (1964), Lauren Bacall tells Henry Fonda: ' A second honeymoon. Where are you taking me, nooky? ' (2) The Joker (Jack Nicholson) looking at a picture of Kim Bassinger tells his sidekick Bobby in Batman (1992): ' I'm about to get a new girl, Bobby. I'm of a mind to make nooky.' See copulation for synonyms.