Amissapanda
Manda Panda
When a villager asks me to change their catchphrase I tell them no because I prefer original catchphrases over something lame I'd have to try and come up with
This unfortunately doesn't always work. Yeah, it does prevent you from passing one of your own made-up catchphrases on to them, but it does not stop them from passing them on to each other. At one point, both Kid Cat and Maelle were saying "cha-chomp" just like Fang did. I've had the same issue with clothing. Sometimes they'll just chat with another villager and afterward changing into that villager's shirt and start singing. You can't really prevent these things from happening. And I wouldn't say they're rare occurrences, either. It became a focus in my liveblog of ACNL that Diana's shirt/dress was some kind of curse the villagers were all passing on to each other.
