Booing

[Sarah]

A crap slang word meaning bad or can mean to [whine] or [winge]. Used by people that dont know how to use the word fuckinging [and shit] expressively enough.

[Lanell]

to make an expression of strong disapproval or disagreement:

[MichaellaHaw]

Booing is an act of publicly showing displeasure for someone or something, such as an entertainer or an athlete, by loudly yelling Boo! and sustaining the oo sound by holding it out. People may also make hand signs such as the thumbs down sign. If spectators particularly dislike the performance they may also accompany booing by throwing rotten fruit on stage.
Players booed for their performance felt booing spooked or bothered them or their teammates, and that it affected their performance. Nick Swisher stated It hurts. Sometimes Im a sensitive guy and some of the things people say, they get under your skin a little bit. Ledley King stated, It just frustrates me when the crowd boo England, who is that going to help? It just heaps more pressure on the players and gives us even less of a chance of scoring. However, the counterargument goes that the combination of booing and applause help keep the quality of public performance high, by emotionally rewarding the good and punishing the bad.Booing is not always a judgement of performance, but can be an expression of disapproval of a third party.

[Hina Muqadas]

A disapproving exclamation by a member of an audience.