n.
Function: transitive verb
Date: 1835
1 : to make fluffy < fluff the pillows> <birds fluff ing up their feathers>
2 a : to spoil by a mistake : BOTCH b : to deliver badly or forget (one's lines) in a play
intransitive verb
1 : to become fluffy
2 : to make a mistake especially : to forget or bungle one's lines in a play