Third-person singular simple present indicative form of riff.(verb)
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Use "riffs" in a sentence
"The title riffs on the motto of the mythical team on "Friday Night Lights.""
"The twist is that the artists perform literally beside Boilen's desk on the fifth floor of NPR's headquarters on Massachusetts Avenue NW (the name riffs off of Boilen's psychedelic dance-rock band, Tiny Desk Unit, which was the inaugural act at Washington's 9: 30 Club in 1980 and still performs)."
"While by no means a masterpiece, when Craig Mazin riffs on the “Spider-Man” trilogy, “Superhero Movie” is cause for some occasional chuckles."