BT Bek 7a(51) :והאי דעכירי ה̇ב̇לא דבשריה הוא‏ : the reason that (the donkey's urine) is turbid is the heat of its flesh
See the entire entry for *habbel, habbəlā n.m. vapor; vanity

BT Bek 7a(51) var.Vat. :מגופיה קא ממצצי‏ : they are being sucked out of its body
See the entire entry for mṣṣ vb. to suck