Definition: Definition: To act dishonestly or unfairly in order to gain an advantage, especially in a game or examination.
There are several regional variations in North America. (Video above contributed by Greg Eyben.)
Regional variation: commonly seen in Canada.
Regional variation: commonly seen in the U.S.
These are somehow more common in North America. However, there are a few more variations specific to the local or state level that you may learn from them in your region.