>>51047988It's an informal usage of legitimate. Legitimate is essentially an even more formal usage of validity, authenticity. Essentially meaning it's based in legal truth. Legit is slang, so that truth is more informal.
It's the difference between whether or not you consider a tranny who legally changed their identity to a woman, as a woman. In the eyes of the legal system, he is a legitimate woman. But no sane layman will call him a legit woman in private.
If you need a non-tranny example, it's like a stolen object. If no one can prove it's illegitimate, then it is legitimate. But all your homies know you aint rich enough to afford jordans legit.
As for why you should care, you really shouldn't. Only SMaggots care that every accepts their "tournament" as valid and to properly identify Ash as his new gender