From an unused (and vulgar) root probably meaning to evacuate the bowels: excrement; -dung. Also chariy {khar-ee'}.
Englishman's Concordance
1) dung, excrement Part of Speech: noun masculine A Related Word by BDB/Strong’s Number: from an unused (and vulgar) root probably meaning to evacuate the bowels Same Word by TWOT Number: 730a
Brown-Driver-Briggs
[חֶרֶא, or חֲרִי] noun [masculine]dung (Late Hebrew חרא (י_), id.; Aramaic id.; Mandean חרא (on this and cognate languages in General see NöM 56); Arabic id., whence verb of act, and noun of place; Amharic (DiLex. Aeth. 88)) — plural suffix חַרְאֵיהֶםIsaiah 36:12 Kt (Qr צוֺאָתָם); "" 2 Kings 18:27 has חֲרִיהֶם (see singular חרי2 Kings 6:25; Qr as above); חֲרִי יוֺנִיםdove's dung2 Kings 6:25 Kt (Qr דִּבִיוֺנִים); see, further, GeiUrschrift, 409.
Isaiah 36:12 HEB:[חַרְאֵיהֶם כ] (צֹואָתָ֗ם ק) וְלִשְׁתּ֛וֹת NAS: [doomed] to eat their own dung and drink KJV: that they may eat their own dung, and drink INT: the wall eat dung and drink waste