Learn the Art of Debate: The Ad Hominem Fallacy:
You are an unimaginative, impotent weasel, therefore you are wrong
❌️ Ad hominem attack, weasels are still capable of making valid claims, however unlikely
You are wrong and also an unimaginative, impotent weasel
✅ Reasonable induction from available evidence, not an ad hominem
is explaining the difference between using an ad-hominem argument and just being extensively insulting. Not because it's particularly hard to define an ad hominem argument and create examples, just because the 
to me
They called me a peepee poopoo head!!! (because i am violently trans- and homophobic and spewed out a slew of slurs, but i will never admit that)