The Collaborative International Dictionary of English v.0.48:

Pouf \Pouf\, Pouffe \Pouffe\(p[=oo]f), n. [Written also
   pouff.] [F. pouf. Cf. Puff, n.]
   Lit., a puff; specif.:
   (a) A soft cushion, esp. one circular in shape and not, like
       a pillow, of bag form, or thin at the edges.
   (b) A piece of furniture like an ottoman, generally circular
       and affording cushion seats on all sides.
       [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

pouffe
    n 1: thick cushion used as a seat [syn: ottoman, pouf,
         pouffe, puff, hassock]