ELI5: Explain Like I'm 5

Catchphrase

A catchphrase is a phrase or expression that is repeated by different people over and over, usually to express a certain feeling or idea. Catchphrases are usually funny and stylish, so they are often shared between friends and family. A popular example of a catchphrase is "Keep calm and carry on" which means to stay calm and keep going no matter how hard things seem.