When a man (or woman) once in a long time finally achieves the orgasm (or ejaculation) called, "The Perfect Nut."
Jimmy has not masturbated in a month. After waiting awhile, he finally releases the perfect nut one night.
When someone or something is so perfect that one can ejaculate (often referred to as "nutting") in their pants from sight of this beauty.
Jesse: "Did you listen to the song I sent you"
Tony: "Yeah, it was to nut perfection"