[Probably in origin a misprint or other error for throttling. See quots.
1726. [? N. Bailey], Dict. Rust. (ed. 3), Throstling, a Disease in Black Cattle, which proceeds from humours gathering under their throats, which so dangerously swell the Glands, that the Beast will be choakd if not relieved.
1753. in Chambers, Cycl. Suppl.
182832. in Webster; and in later Dictionaries; but not known to Veterinary Surgery.]