Ruffle is a substitute for the internet phrase ROFL. ROFL as one word sounds a bit like ruffle. It's less annoying than internet-speak acronyms and can also have multiple uses.
A redhead who consistently gets cheated on and then turns around and snitches instead of handling it privately. Often known for stirring drama after being wronged rather than moving on.
Don’t tell him anything, he’s a total ruffle — dude got cheated on and reported everyone involved