Fan Casting Abandoned Catchphrase in Sort by Tropes

Character Catchphrases are a great and simple way to help a character's image. But sometimes, catchphrases don't stick. Perhaps the writers were experimenting with one early on, but eventually decided against it. Or perhaps a catchphrase was done to death and is no longer funny. The phrase may have gone stale. As times change, the phrase may gain unwanted connotations. Or sometimes, a character simply evolves and the catchphrase no longer fits the character.