frilliest

noun

1. a fold or fringe of hair or feathers around the neck of a bird or animal
2. any unnecessary ornament; superfluous thing added for show
3. an edging or trimming of lace, etc., gathered or pleated and attached along one edge but free at the other; ruffle
4. Photog. a wrinkling of the edge of a film, plate, etc.

transitive verb

1. to make a ruffle of; crimp
2. to decorate with a frill

intransitive verb