Fapnut.

It is often used as a light-to-moderate insult in gaming lobbies or imageboards to dismiss someone’s opinion. For example, "Be quiet, you fapnut," implies the person being addressed spends too much time in dark corners of the internet and has no "real world" authority. The Rise of Digital Slang

A slang verb and noun used to describe ejaculation or the climax of sexual arousal. fapnut.

The emergence of words like fapnut highlights how digital intimacy and isolation have created their own vocabulary. Much like the "NoFap" movement—which encourages people to abstain from adult content to improve mental health—the term fapnut acts as a linguistic marker for the behaviors that NoFap proponents try to avoid. Impact on Internet Culture It is often used as a light-to-moderate insult