Pat is a character in a comedy sketch. The joke is that they're intractably androgynous. This plays out in comically awkward scenes. Someone tries to politely or unobtrusively figure out wether they're a man or a woman. Pat consistently acts or answers in a way that foils the attempt. Laughter ensues.
The character doesn't have a learning disability, they're just comically clueless about the dilemma their character presents. That's the joke.
It should also be noted that the Saturday Night Live "Pat" sketches are from the 90s. Trans rights activism was still in its infancy, and it was not taboo to joke about gender ambiguity.
Also, Julia Sweeney does a pretty good job of delivering that ambiguity in her performance.
I've never seen any of that before. I don't know about ambiguity but surely the actual sex of the actress is blindingly obvious the entire time? It was to me.
I've mentioned this before about actresses playing male characters on stage, particularly in relation to the Met
Parsifal where the male chorus and male principles are joined by two sopranos singing the parts of two of the pages. Modern dress, everyone in almost identical white shirts and dark grey trousers and bare feet. Imagine a wide view of the stage, lighting quite dim, no one character is standing out or the centre of focus. These two women, mingling with the rest, are almost immediately clockable as women despite the best efforts of wardrobe, makeup and hair - including, I think, chest binders.
Another thing that springs to mind, although slightly different, is Janet Baker's Orfeo. A masterly performance and again wardrobe, hair and makeup did their level best, but of course the audience knew all the time exactly which diva was starring. I thought it was a wonderful performance, very moving etc etc. Then I saw Jochen Kowalski, a counter-tenor, in the same role. It was electrifying. The casting of an actual for realsies male human being as the bereft young husband setting out to recover his lost wife was on another level entirely. The sexes are not interchangeable, and people
know, and respond accordingly.
I mean come on. There are certainly a few individuals who aren't
immediately clockable one way or the other, usually teenagers, but a few moments in their company, especially hearing them speak, and no doubt remains. Anyone who remained unaware that that Pat character was actually female for more than about three seconds - well I wonder about their eyesight and hearing.
That was what was so deceptive about the casting of a female actress as the trans-identifying male character in
Coronation Street. She was read as female the entire time, subliminally grinding the idea that TWAW into all the viewers.