Nut Remorse 

The experience many men feel immediately after ejaculation, most often during sexual intercourse but sometimes during masturbation, signaling that the particular sexual act wasn't worth their time and/or the person they have just hooked up with is unattractive or just not that sexually exciting.

After fucking the Titty Mongrel, Doug experienced an overwhelming sense of nut remorse, wishing he had rubbed one out instead.

Nut Remorse by Fast Bobby February 24, 2009