Reference for Niddah 29:49

אדרבה איפכא מסתברא

Topsy turvy!<span class="x" onmousemove="('comment',' Lit., 'towards where' or towards the tail' (cf. B.B. (Sonc. ed.) p. 435, n. 17). ');">⁴⁴</span>

Jastrow