ADJ-GRADED
(曲调、名字或广告)悦耳的，有吸引力的，琅琅上口的
If you describe a tune, name, or advertisement as catchy, you mean that it is attractive and easy to remember.
例句
The songs were both catchy and original...
那些歌曲既上口，又富有原创性。
The initiative has been given the supposedly catchy title of the 'Citizen's Charter'.
提案取了个据说很容易记住的名字，叫做《公民宪章》。