Exclamation mark rule

The unspoken rule that when using exclamation marks, you must always use either one or three exclamation marks in a row. Two or four are not allowed, because they look wrong.
Girlfriend (texting): the new twilight movie is out!! lets go!!!!
Boyfriend: no. you just broke the exclamation mark rule
by Urban Jew January 17, 2010
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Mark's Rule

the combination of Elimination Method and Cramer's Rule
I will use Mark's rule on my math exam.
by selena7896 February 24, 2023
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