Any unwritten rule of man that is understood by all heterosexual men as being law.
"Always look forward and at eye-level when in the men's locker room".

Jeremy broke the locker room "man rule" and practiced dudity when he looked at Mike's ass while he was changing clothes.
by Dr. Biggoms April 17, 2007
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If you take a chick (if you're a guy)out on a date and it isn't going too well then take her back to your place. Then when she goes to the toilet strip down bollock naked and when she comes out, 2 out of 3 times you get laid.
Three guys go on a triple blind date
they each take their respective partners back to their flats and they meet up the next day.
1st guy: did you do the naked man rule?
2nd guy: Yeah . it worked BOOM
3rd guy: for me third guy unlucky
by vulture boi April 30, 2009
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An aid for young straight males in order to define the age of a young looking peice of ass.
It is often done silently, accompanied by a knowing smirk, and a 'thumbs-up' by at least two people. It is now considered to be ok to go 'tap that ass'.
It'll hold up in court as well.
Jed: Look at that mate! she looks a bit young though....

Gaz: I'll TWO MAN RULE it.. (knowing smile, thumb up)

Jed: Allllrrrright! (Thumb up)
by Jeddycakes September 17, 2006
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The sacred rule of Discord vc: If two guys are alone in the voice chat, it is gay.
Guy 1: Hey man, want to play some Valorant
Guy 2: Sure, if we get a 3rd
Guy 2: What why?
Guy 1: It's the 2-Man Rule dude
by Lordrick J Cordrick April 25, 2022
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A funny phrase James May wrote on the side of Richard Hammond's pickup truck for the US Special of the BBC series Top Gear. This phrase became popular for them almost getting shot by people in Alabama. During a fuel stop they were confronted by "rednecks", who were offended by the slogans causing the crew and presenters to flee.
James May: *writes "Man Love Rules OK" on the side of Hammond's pickup truck*
Jeremy Clarkson: "what you've done James, is killed your friend..."

*later in Alabama*

Woman: Now, are y'all gay looking to see how long it takes to get beat up in a hick town?
Jeremy Clarkson: I am running for the border.
Richard Hammond: They could have killed us!
Jeremy Clarkson: I honestly believe that in certain parts of America now, people have started to mate with vegetables.
by Julian-does-a-lot November 13, 2022
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