וַיֹּ֨אמֶר אֲלֵיהֶ֜ם רַב־שָׁקֵ֗ה הַעַ֨ל אֲדֹנֶ֤יךָ וְאֵלֶ֙יךָ֙ שְׁלָחַ֣נִי אֲדֹנִ֔י לְדַבֵּ֖ר אֶת־הַדְּבָרִ֣ים הָאֵ֑לֶּה הֲלֹ֣א עַל־הָאֲנָשִׁ֗ים הַיֹּֽשְׁבִים֙ עַל־הַ֣חֹמָ֔ה לֶאֱכֹ֣ל אֶת חריהם [צוֹאָתָ֗ם] וְלִשְׁתּ֛וֹת אֶת־שיניהם [מימֵ֥י] [רַגְלֵיהֶ֖ם] עִמָּכֶֽם׃
拉伯沙基對他們說：«我主差我來，難道只是要對你的主人和你說這些話嗎？豈不也是要對那些坐在城牆上的人說嗎？他們必與你們一同吃自己的糞，喝自己的尿。»
Rashi
To eat their own excrement. In the hunger [caused] by the siege.20If they continue guarding the wall to prevent Ashur's army from entering, they will lay a prolonged siege to the city that will be so severe that the people will starve during the siege, causing them to “eat their own, etc.”—Ralbag
Rashi
Their dung. Dung that is excreted through the orifice of the anus. Our Rabbis explained to euphemize and read, “צואתם” [instead of חריהם].21See Maseches Megillah 25b.
Rashi
Their own urine. Loose excrement, the glands of the rectum, which is held by three glands. Alternatively, an expression of excrement which comes about through the chewing of the teeth [=שניהם].