My conure seems to have picked up every cuss word even if she heard it only once. And I think half of them came from TV as they are words I never say. I caught my ex bf saying the F bomb to her. I made him stop, but a few months later she said it to a friend I have that she doesn't like.
The first time my sister's Meyer's stayed here for the weekend, I learned immediately that he only knew 3 words but one was "Dang it" (only not that, you know the real version). As soon as she left he said, "Hey, Murray" and my BC yelled, "Hi!". Then he said, "Dang it!" and my Nanday cussed back. This went on over and over the entire first night. I had a new bf then who came for dinner. He asked, "Are those birds saying what I think they are?" and I had to answer, "Unfortunately, yes."
When my sister returned I asked if she knew Murray said that word and she said no, he doesn't! A few weeks later she emailed me and told me he said that. I said yes, I know, I told you that when he was here. Then she accused me of teaching it to him! I said, nope, I don't say it, and he started with it one minute after you left.
It turned out I did teach him to say "Pretty" while he was here, lol!
None of mine has ever said "shut up" though, lol! I guess they have never heard it though. Sounds like a kid back talking mom!