1riff 
/ˈrɪf/ noun
plural riffs /ˈrɪf/ noun [count] 1 music : a short and usually repeated pattern of notes in a song
▪ a guitar riff ▪ He stole that riff from another song. 2 US, informal : a short set of comments on a particular subject — often + on ▪ a comedian's riff on modern love
▪ a guitar riff ▪ He stole that riff from another song.
