The caretaker of anothers children for pay. Equivalent to a mercenary, but much more maternal. In history, nanny's have often been noted to effectively replace the biological parents in many respects, or at least take over many of the fundamental tasks of parenthood such as feeding, cleaning and caring for ones offspring.

Most commonly occurring in a committed relationship or close proximity roommate situation. It is the act of putting ones own show/music/etc on speakers before the other domestic resident can put theirs on speakers, thus forcing them to use headphones. Most relevant when the other party had theirs on speakers first, and due to an interruption they paused/muted their sound, and upon cessation of the interruption, the first party puts their audible content on speakers.