What I remember @RickJay doing was posting a link to a Google Image search for a particular trans woman while saying she clearly was not actually a woman. This was during a debate over whether someone is still a trans woman if they don’t appear to be making any attempt to actually present as female (other than claiming to be trans female and using female pronouns). However, in all the images I saw in the link, she was clearly and obviously presenting as female.
I have my own idea of why this might have been more a slip of the tongue rather than outright (trans)misogyny, but I have a “rule” that, if someone is accused of something, I don’t come up with the explanation for them. The logic is that, if they can’t think of the explanation themselves, then it likely isn’t true.