Dans l'esprit gay un "daddy" est le partenaire sexuel beaucoup plus âgé, de 20 ans voire plus. L'aspect physique est moins important que la différence d'âges entre les deux partenaires.
Definition of a gay "Daddy" in Wikipedia:
A Daddy in gay culture is an older man sexually involved in a relationship or having a sexual interest in a younger man or "son". The age gap may differ, but the relationship involves the traditional parental hierarchy of father-son dynamics, the daddy providing emotional support and guidance along with sexual encouragement and nurturing to the inexperienced and vulnerable partner. The typical interpretation usually includes the dad taking the sexual role of top (sex) while the bottom (sex) role is ascribed to the son, though actually many relationships work the other way round or have no such strict behavioural categories rooted in anal sex.