سرمسُرْمٌ The anus; (IAar, T;) the place of egress of the feces; i. e. the extremity of the rectum; (S, K;) a post-classical word: (S:) or the interior of the extremity of the rectum: (Lth, TA:) or the edge, or margin, of the rectum: accord. to some, peculiarly in beasts of prey that have claws: pl. أَسْرَامٌ. (M.) Hence the phrase رَجُلٌوَاسِعُ السُّرْمِ ضَخْمُ البُلْعُومِ, occurring in a trad., meaning (assumed tropical:) A man strong, or vehement, and violent, or wrongful or unjust or tyrannical in conduct: or a man prodigal of wealth and of blood: and therefore described as wide in the places of egress and ingress. (TA in art. بلعم and in the present art.)سَرَمٌ Pain of the anus. (K, TA.)