noun, plural boos.
verb (used without object), booed, boo·ing.
verb (used with object), booed, boo·ing.
Origin of boo1
Definition for boo (2 of 3)
Origin of boo2
Definition for boo (3 of 3)
Origin of boo3
Examples from the Web for boo
I could call him my “boo,” but when I tried it out he rolled his eyes.
Here Comes Honey Boo Boo, taken as a part of the TV landscape, actually meant something.
It was a case of the jitters, a nation primed to jump at the word “Boo!”When Mars Attacked 75 Years Ago—And Everyone Believed It|Marc Wortman|October 29, 2013|DAILY BEAST
Big Boo is also one of the few characters who seems to “get” prison.
The U.S. administration would gush over Fayyad, just stopping short of calling him their Boo.
I swept the stairs this morning, but the dust gathers before you can say boo, and that dress won't do up.The Shoulders of Atlas|Mary E. Wilkins Freeman
Mr. Perley had arisen and was holding up his hand for silence, when with one terrific "Boo!"Cap'n Eri|Joseph Crosby Lincoln
Its features lighted up with mirth, and the lips formed the unmistakable monosyllable: "Boo!"The Unspeakable Perk|Samuel Hopkins Adams
I was quite a little chap, and hustled out of sight if I said 'boo.'Mrs. Geoffrey|Duchess
My dear old companion, Boo, who was with me, resented this very much: "How can you say such things to my Nelly?"The Story of My Life|Ellen Terry