TgPs12:9 :מהלכין כעלוקא דמצצא אדמיהון דבנינשא‏ : they walk about like a leech that sucks humans’ blood
See the entire entry for mṣṣ vb. to suck

TgPs12:9 :כעלוקא דמצצא אדמיהון דבנינשא‏ : like a leech that sucks humans’ blood
See the entire entry for ˁlwqh n.f. leech