أَرْسَحُ

A man (S, L) having little flesh in his posteriors (S, A, L) and thighs: (S, L:) or having small buttocks, sticking together: (L:) feminine رَسْحَاءُ; applied to a woman: (S, A, L:) plural رُسْحٌ. (S, K.) [See also رَسِحٌ.] الأَرْسَحُ means The wolf: (TA:) [for] every wolf is [termed] أَرْسَح because of the lightness [of the flesh] of his haunches: (S, A, * K:) and so is the سِمْع [a mongrel beast, the offspring of a wolf begotten from the hyena]. (TA.)

Also, the feminine, A foul, an ugly, or an unseemly, woman: (K, TA:) though disapproved by MF. (TA.)