1. The exact moment when a person realizes that they are homosexual (or bisexual). This refers to the mental realization and acceptance of their attraction to the same gender (called 'huroko moment').
2. A person's first homosexual thought or physical act that is sincere. This often happens well before the mental realization of being homosexual (simply called 'huroko').
Sarah's huroko occured when she slept over at Jenny's house. Sarah fantasized about being in the same sleeping bag as her friend. About six months later, Sarah had her huroko moment, in which she realized she was homosexual.