The distorted sound a woman hears after her man has ejaculated in her ear following or instead of vaginal intercourse. Typically utilized as a form of psychological punishment to the woman for not retrieving a beer, sandwich, etc.
Best inflicted while the woman is sleeping to induce maximum mental disorientation, though the technique can also be applied overtly to establish dominance.
A derivative of the sound of your own voice heard in earphones when speaking through a headset with attached microphone, or in the monitor earpiece musicians wear.
She wouldn't let me go anywhere near her NAT box last night, so I waited for her to fall asleep and slipped it in her ear. That f*@king Adele song won't sound so sweet with fuzzy sidetone!