فندرفَنْدَرٌ and فُنْدُرٌ, applied to a boy or youth, Plump: and wanting in courage and generosity; stupid and heavy. (Ibn-'Abbád, O.) فِنْدِيرٌ and ↓ فِنْدِيرَةٌ (K in this art., and S in art. فدر,) A great mass of rock that becomes detached (S, K) from the head (S) or from the side (K) of a mountain: (S, K:) pl. فَنَادِيرُ. (TA.) b2:  And, both words, A large lump of dates (K, TA) compacted together; as also فِدْرَةٌ. (TA.) الفُنْدُورَةُ The anus. (IAar, T, O, TA.) فِنْدِيرَةٌ: see فِنْدِيرٌ.Accord. to some, the ن in the words mentioned in this art. is augmentative. (O.)