Jastrow: קִלְקֵל

קִלְקֵל, קִילְקֵל (קָלַל, cmp. קְלַק) 1) to upset, disarrange, damage, ruin, opp. תקן. Gen. R. s. 98 ק׳ את היצועין upset the couches. Ḥull. 8ᵃ מותר … מְקַלְקֵל הוא it is permitted to slaughter with a knife belonging to idolatrous service, because slaughtering is doing damage (a living animal being more useful than a dead one). Sabb. XIII, 3 כל המְקַלְקְלִין פטורין all those who perform an act (on the Sabbath) by which they do ruin, are exempt (from sin-offering); והמקלקל ע"מ לתקן וכ׳ but he that undoes a thing for the purpose of reconstructing it is guilty. Keth. 5ᵇ; a. fr. —2) (with or sub. מעשה = b. h. הִשְׁחִית) to be corrupt, to disgrace one’s self by immorality. Y. Taan. I, end, 64ᵈ חם … קִילְקְלוּ מעשיהן Ham, the dog, and the raven acted mischievously (by sexual connection in the ark, v. Snh. 108ᵇ; Gen. R. s. 36). R. Hash. 12ᵃ ברותחין קלקלו וכ׳ with heat (of passion) they sinned, and with hot waters they were punished; Snh. 108ᵇ. Tosef. Sot. II, 2 אפי׳ תְקַלְקֵל וכ׳, v. עָרַר; a. fr.—[Midr. Till. to Ps. VII, ed. Bub. note 69 קלקלתי, v. כִּלְכֵּל.]—Part. pass. מְקוּלְקָל; f. מְקוּלְקֶלֶת; pl. מְקוּלְקָלִים, מְקוּלְקָלִין; מְקוּלְקָלוֹת. M. Kat. I, 2 (2ᵃ) ומתקנין את המקולקלת Y. a. Bab. ed. (Mish. המקולקלות, incorr.) and you may mend a channel that is out of order during the festive week. Snh. 39ᵇ (ref. to Ez. V, 7) כמתוקנין … כמק׳ שבהם עשיתן you did not do according to the good usages among them, but according to their corrupt usages. B. Bath. 109ᵇ, v. קַלְקָלָה; a. fr. —3) (b. h.) to sharpen; trnsf. (cmp. חָדַד, שָׁנַן) to repeat, study. Koh. R. to X, 10 אם נקהה … קַלְקֵל עליו בחילך if thy lesson is as tough to thee as iron (v. קָהָה), and … none is on hand to explain it to thee, go over it studying with thy own strength.