Χαλαζᾷ

i.e. is loose. "If he is hailing in the arse".¹ But this is a disease of animals, which escapes notice while they are living, but becomes apparent when they are dead and cut up. The "hailstone"² is mixed up and grown into their flesh. Butchers usually open the mouths of pigs with a peg after slaughter to determine whether they have hailstones.³ Hailstone is entirely a disease of pigs.