coat‧tails /ˈkəʊt-teɪlz $ ˈkoʊt-/ noun [plural]

1. if you achieve something on someone’s coattails, you achieve it because of the other person’s power or success
on sb’s coattails
A number of Republican congressmen were elected on Bush’s coattails.

2. the cloth at the back of a tailcoat that is divided into two pieces

[TahlilGaran] Dictionary of Contemporary English ▲