The Gacha version of 'Ok Boomer'.
This term is used to describe the
little kids that play GachaLife, GachaVerse or any other games that relate who typically is incapable of taking most opinions from others who dislike Gacha.
Let's break the word / term down.
Ok - from 'Ok Boomer'
Gachatard - Gacha which is the name of
the franchise.
Tard - The
second half of the word 'Retard' which means someone who is stupid.