[f. prec.] intr. a. To low as a cow; to make a similar noise. b. To utter boo!; to hoot. Hence Booing ppl. a. and vbl. sb.
1816. Quiz, Grand Master, VII. 188. At the Presidency, Some people boo with complaisancy.
1852. Q. Rev., Dec., 212. The poor neighbours were wont to exclaim, There he [Wordsworth] is; we are glad to hear him booing about again.
1882. Jefferies, Bevis, II. vi. 77. There was the booing of distant cows.
1884. Rept. Ld. Salisburys Sp., in Times, 23 July, 10/1. We have been informed by Mr. Gladstone (Great booing and cheering).
1884. Gd. Words, May, 324/2. A voice booing and hulloing.