LoL - should have wikipedia'd it before I chose it:

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A money shot is a provocative, sensational or memorable sequence in a film, on which the film's commercial performance is perceived to depend[1].


[edit] Origin
The term originates from mainstream feature filmmakers, who used the term "money shot" as slang for the image that costs the most money to produce;[2]. For example, in an action thriller, an expensive special effects sequence of a dam bursting might be called the "money shot" of the film.

Also called a "money-making" shot[3].

A money shot has also been used as another name for a cum shot in pornographic films. The shot was so named because if a male actor could not provide this shot he would not be paid. It can also refer to the camera shot of expression on the actor's face as he ejaculates, which is seen often in pornography.

Oh well, I ended up renaming them Multish�tz, Multish�tz, Multish�tz, etc...seems more appropraite for a multi boxer anyway! :P