Peak trans

[winefortea]

What does the phrase 'I've reached peak trans' mean? I've seen it many times on numerous threads here, but even taking into account the contexts it has been used in, I'm still not quite sure what it means. Googling hasn't helped me either, so please could someone explain. Apologies if it is obvious and I'm being dense.
TIA

It's just not on men's radar because it doesn't affect them.

My dh and ds both agree that tw are not women but don't want to discuss in any depth.

Dd who calls herself a feminist is totally onboard with twaw yet cannot put forward a rational or logical explanation of how they are women. She agrees that if her dad became a woman, that would make me bisexual whether I agree with it or not. I just laugh at her now and wait for maturity to hit.