The Collaborative International Dictionary of English v.0.48:

Fanfoot \Fan"foot`\, n. (Zool.)
   (a) A species of gecko having the toes expanded into large
       lobes for adhesion. The Egyptian fanfoot (Phyodactylus
       gecko) is believed, by the natives, to have venomous
       toes.
   (b) Any moth of the genus Polypogon.
       [1913 Webster]