All the tired puns or jokes about Nazis/Hitler. "Anne Frankly, I did Nazi that coming!" "You gotta hand it to Hitler, at least he killed Hitler." Etc.
It's the kind of thing you might chuckle at once, but so many comment threads end up piled with the same brain rot nonsense as people trip over themselves to parrot their quirky internet catchphrases.
Pronoun jokes are almost never funny, especially in the current political environment. Especially if cishet folks are making them. The exceptions are few and far between.
I actually found myself tempted to say exactly that earlier today. Someone said something about sucking, and my initial instinct was, "That's what she said!", but then I thought about the audience and felt like the gender neutral "they" might be more appropriate, but I wasn't really sure, so instead I said nothing.