فسو

1 فَسَا ذ , (aor. يَفْسُو, Msb,) inf. n. فَسْوٌ (S, M, Msb, K) and فُسَاآءٌ, (M, K,) or this latter is a simple subst., (S, Msb,) He emitted a noiseless wind [or a puff of wind ] (Msb, K, TA) from his anus. (K, * TA.) [Hence the saying, فَسَابَيْنَنَا الظَّرِبَانُ, or بَيْنَهُم, expl. in art. ظرب.]