The definition of a ruffle is a pleating or gathering of fabric, or an annoyance.(noun)
Ruffle is defined as to wrinkle, or to annoy or bother.(verb)
See ruffle in Webster's New World College Dictionary
Origin: ME ruffelen < ON or MLowG, as in LowG, ON hrufla, to scratch
See ruffle in American Heritage Dictionary 4
Origin: From Middle English ruffelen, to roughen.
Origin: Probably from frequentative of ruff4.
intransitive verb ruf·fled, ruf·fling, ruf·fles
Origin: Middle English ruffelen, to quarrel.
Learn more about ruffle