riff
verb [intransitive]to play a short repeated pattern of notes in popular music or jazz （流行音樂或爵士樂的）重複段 riffing guitars 即興演奏吉他
- riff (on something)
to perform a monologue (= long speech by one person) on a particular subject, especially a funny one that you make up as you are speaking 即興： 在一個特定主題上進行獨白，尤其是您在講話時做的一個有趣的主題Most comedians can riff on politics. 大多數喜劇演員都會即興重複政治。