system
A chat on subreddit /r/NoStupidQuestions
human
So why not say asshole. Rather than use a body part? My question is not what does it mean, but rather why is it okay to state that a small dick is “less than”.  

Is this not the same as saying things were gay in the 80’s and 90’s. That was phased out because of the fact that it stated that gay was less than. Even though that was maybe not the intention of the speaker, the word gay was used to say less than.
gpt
Because asshole doesn't work anymore. It's a common blanket term, it doesn't deliver the impact you want. 

Insults are meant to trigger.