In computer programming, an anonymous function (also function literal or lambda abstraction) is a function definition that is not bound to an identifier. Anonymous functions are often: passed as arguments to higher-order functions, or used to construct the result of a higher-order function that needs to return a function. If the function is only used once, or a limited number of times, an anonymous function may be syntactically lighter than using a named function. Anonymous functions are ubiquitous in functional programming languages and other languages with first-class functions, where they fulfil...

The Invisible Pink Unicorn (IPU) is the goddess of a parody religion used to satirize theistic beliefs, taking the form of a unicorn that is paradoxically both invisible and pink. She is a rhetorical illustration used by atheists and other religious skeptics as a contemporary version of Russell's teapot, sometimes mentioned in conjunction with the Flying Spaghetti Monster. The IPU is used to argue that supernatural beliefs are arbitrary by, for example, replacing the word God in any theistic statement with Invisible Pink Unicorn. The mutually exclusive attributes of pinkness and invisibility, coupled...

A rookie is a person in his or her first year of a sport, or someone who is new to a profession, training or activity such as a rookie police officer, rookie pilot, a recruit, or occasionally a freshman. == Throughout sports == In some sports there are traditions in which rookies must do things or tricks are played on them. Some examples in baseball include players having to dress up in very strange costumes, or getting hit in the face with a cream pie; a traditional rookie's "hazing" procedure in American football involves taping players to a goalpost and dousing them with ice water, Gatorade...