from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A sound uttered to show contempt, scorn, or disapproval.
- n. Informal Any sound or word: You never said boo to me about overtime.
- interj. Used to express contempt, scorn, or disapproval or to frighten or surprise another.
- intransitive v. To utter a boo.
- transitive v. To express contempt, scorn, or disapproval of by booing: booed the singer off the stage.
- n. Slang Marijuana.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- interj. A loud exclamation intended to scare someone, especially a child. Usually used when one has been hidden from the victim and then suddenly appeared unexpectedly.
- interj. A word used ironically in a situation where one might have scared someone, but said someone was not scared. Not said as loudly as in definition 1.
- interj. An exclamation used by a member or many members of an audience, as at a stage play or sports game, to indicate derision or disapproval of what has just occurred.
- n. A derisive shout made to indicate disapproval.
- n. A close acquaintance or significant other, derived from French beau.
- v. To shout extended boos derisively.
- v. To derisively shout extended boos at.
from the GNU version of the Collaborative International Dictionary of English
- v. to show displeasure (after a performance or speech) by making a prolonged sound of “boo”.
from The Century Dictionary and Cyclopedia
- Same as bo.
- n. Same as bu.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a cry or noise made to express displeasure or contempt
- v. show displeasure, as after a performance or speech
Origin unknown.(American Heritage® Dictionary of the English Language, Fourth Edition)
Coined to create a loud and startling sound. Compare Latin boō ("to cry aloud, roar, shout"). (Wiktionary)