to show displeasure (after a performance or speech) by making a prolonged sound of "boo".

a cry or noise made to express displeasure or contempt

show displeasure, as after a performance or speech

boo is a new object oriented statically typed programming language for the CLI with a python inspired syntax and a special focus on language and compiler extensibility.

Boo is an object oriented, statically typed programming language developed starting in 2003, which seeks to make use of the Common Language Infrastructure support for Unicode, internationalization and web style applications, while using a Python-inspired syntax and a special focus on language and compiler extensibility. Some features of note include type inference, generators, multimethods, optional duck typing, macros, true closures, currying, and first class functions.

A Boo (Telesa or Teresa) is a type of ghost featured in Mario video games. Boos made their first appearance under the name of "Boo Diddly" (a play on Bo Diddley, an early rock and roll guitarist and singer) in Super Mario Bros. 3 and was virtually invincible to all attacks with the exception of the Starman, Tanooki and Hammer Bros. Suits.

Boo is a character in the Pixar movie Monsters Inc. (2001) and is voiced by Mary Gibbs.

Boo is a client/server chat system that is Unix/Win32 compatible. The server is multi-threaded, and multiple multi-way chats are supported.

The rating you get when you step on an arrow off-beat

Build, Own, Operate

Build, Operate, Own

Base of Operations. I use this term instead of the more common Home Page to be different.

Bootes