BT San 100b(36) :זל דקן קרטמן‏ : a thin-bearded man is one who murmurs
See the entire entry for zldqn n.m. thin bearded

BT San 100b(36) :משו׳ דכת׳ ביה זל דקן קרטמן עב דקן סכיס פח בכסיה לא צהי‏ : because it is written (supposedly in BenSira!) : one thin of beard is dense of speech, one thick of beard is a fool, one who blows on his cup is not thirsty
See the entire entry for qrṭmn n.m. one short of speech