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Urban Dictionary: riff
Riff Definition & Meaning - Merriam-Webster
slang - what does "to riff" mean in this context? - English …
Urban Dictionary: riffing
RIFF Definition & Meaning | Dictionary.com
Riff - Wikipedia
Riff Definition & Meaning | YourDictionary
RIFF definition in American English | Collins English Dictionary
Riff - definition of riff by The Free Dictionary
Riff Definition & Meaning | Dictionary.com