catch·phrase 
/ˈkætʃˌfreɪz, ˈkɛtʃˌfreɪz/ noun
plural catch·phras·es /ˈkætʃˌfreɪz, ˈkɛtʃˌfreɪz/ noun [count] : a word or phrase that is easy to remember and is commonly used to represent or describe a person, group, idea, etc.
▪ popular catchphrases like “politically correct” ▪ The politician asked his writers to come up with new catchphrases. [=slogans]
▪ popular catchphrases like “politically correct” ▪ The politician asked his writers to come up with new catchphrases. [=slogans]
