- 1to play a short repeated pattern of notes in popular music or jazz riffing guitars
- 2riff (on something) to perform a monologue (1) (= long speech by one person) on a particular subject, especially a funny one that you make up as you are speaking Most comedians can riff on politics.
BrE BrE//rɪf//; NAmE NAmE//rɪf//[intransitive]Verb Forms present simple I / you / we / they riff
BrE BrE//rɪf//; NAmE NAmE//rɪf//he / she / it riffs
BrE BrE//rɪfs//; NAmE NAmE//rɪfs//past simple riffed
BrE BrE//rɪft//; NAmE NAmE//rɪft//past participle riffed
BrE BrE//rɪft//; NAmE NAmE//rɪft//-ing form riffing
BrE BrE//ˈrɪfɪŋ//; NAmE NAmE//ˈrɪfɪŋ//