1.
advertising slogan, catchphrase, tagline
A short, catchy phrase used in advertising or promotional materials to attract attention. A Japanese-English coinage (wasei-eigo) not used in English.
Etymology
A Japanese-English coinage (和製英語) combining "catch" and "copy" (in the advertising sense of written text). In English, the equivalent terms are "slogan," "tagline," or "catchphrase."
Usage
キャッチコピー is used broadly for any promotional phrase, from TV commercials to product packaging. The profession of writing them is called コピーライター (copywriter).