· any light downy material

Hypernym(s): material, stuff

· something of little value or significance

Synonym(s): bagatelle, frippery, frivolity

Hypernym(s): triviality, trivia, trifle, small_beer

· a blunder (especially an actor's forgetting the lines)

Hypernym(s): blunder, blooper, bloomer, bungle, pratfall, foul-up, fuckup, flub, botch, boner, boo-boo

· make a mess of, destroy or ruin; "I botched the dinner and we had to eat out"; "the pianist screwed up the difficult passage in the second movement"

Synonym(s): botch, bodge, bumble, fumble, botch_up, muff, blow, flub, screw_up, ball_up, spoil, muck_up, bungle, bollix, bollix_up, bollocks, bollocks_up, bobble, mishandle, louse_up, foul_up, mess_up, fuck_up

Hypernym(s): fail, go_wrong, miscarry

· erect or fluff up; "the bird ruffled its feathers"

Synonym(s): ruffle

Hypernym(s): loosen

· ruffle (one's hair) by combing the ends towards the scalp, for a full effect

Synonym(s): tease

Hypernym(s): comb, comb_out, disentangle