The rule of 4 and 9 is a general unspoken rule in the United States between drivers and cops. The basics is you don't get in trouble for going 4 or less over the speed limit and usually a warning if going 9 or less. 10 miles invokes fines if caught.

the exception is at the beginning or end of a month when the cops are trying to fill their ticket books
someone else come up with a good example for the rule of 4 and 9
by ohio drivers suck May 19, 2008
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Rule 86 Paragraph 4 of the Man Code states, "If an adequately attractive female is within your presence, you are obligated to ask to view said female's breasts."
"Hello Miss. By Rule 86 Paragraph 4 of the Man Code, you are adequately attractive, and as such, may I view your breasts?"
by rastyhaf March 10, 2019
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If there is a rule with specific credentials in it, such as a decimal point or negative sign, that rule is it's own rule, regardless of what rule -2 says.
Man: I found a rule 1.5, but I cant use in because of rule -2
Other man: rule -4. Yes you can.
by Sonicwave.exe May 18, 2021
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a reminder that we do not like to look at sex toys particularly those featuring characters from despicable me I, II, or III, or any knock off, please euthanize me
hey uh wanna see this minion themed...

RULE 4.
by barandgrille July 24, 2021
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