The term used to describe people who try to gatecrash and just generally rain on your parade also known to be filthy and annoying.
Person 1: Where do you live? Person 2: I can't tell you Person 1: Why not? Person 2: I don't want random riff-raff beating on my doors Person 1: *offended*
By {[Punk]}
Its a danm song by AC-DC!
By Darrian
a person of society who does not really give a damn about anything
Dude #1 My GOD is there anything that this person cares about?! Dude#2 Nope he is Riff-Raff
By riff-raff king
Driftwood in human form
"Look at the riff-raff that just floated into the library. They must be from downstream."
By Ancients_Arise
a boy that does not take a shower or shave everyday and only does it when his girlfriend complains of scratchiness
There is a riff raff in my bed!
By eh