The rule that when out drinking you can easily drink 3 pints before you need your first piss but thereafter it's one pint, one piss for the rest of the evening.

(Also applies to drinking tea if you're British).
"I've gotta go piss dude, the 3-1-1 rule's just kicked in".
by Woody72 May 22, 2017
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Brute ships! Staggered line! Shipmaster, they outnumber us 3 to 1!”
“Then it is an even fight.”
by GUNSL1NGER October 30, 2019
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A tray of chips, rice and sauce (usually curry) purchased from a Chinese take away. Mostly found in Ireland.
John - I got the munchies real bad last night, I ate a 3 in 1, two spring rolls and a whole bag of chicken balls from the Mandarin Inn.

Jim - You complete sack of shit, the Mandarin Inn always gives me the shits
by roycabinet December 30, 2010
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When you are so close to win but then you lose
"I don't want you to blow a 3-1 lead"
"I made a mess and blew a 3-1 lead"
"I wouldn't have blown a 3-1 lead if I kept up with the effort"
by NoKangaroos November 30, 2016
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A form of naming people in a group, usually siblings, where the former 3 share similar names and the latter one has a name that completely stands out. A great example would be that one show called Nicky, Ricky, Dicky, and Don (I think that was correct) from a time that I can't quite remember.
Some Farmer: Here's my boys, Larry, Garry, Barry, and Nail. I thought that it would be useful to use the 3:1 Naming Ratio.
Me: What's that last one's name again?
Some Farmer: Nail.
Me: Why Nail?
Some Farmer: Because he was born with a nail square in his forehead.
Me: How is anyone born with a nail already in their forehead?
Some Farmer: Strange things happen on a farm.
by OvercookedToast May 24, 2021
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It's a new-fresh way of thinking. Socially liberal, socially pissed-off, and fiscally conservative. F*ck off, but I love you, and I want government out of our lives as much as possible.
I'm the New Republican. That's how I doos it, in three parts; 1/3 hippie, 1/3 punk, 1/3 republican.
by MPCopeland June 16, 2011
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The art of anal, fingering, and making out.
The female arks her ass back so the male can stick his wang in her anus but at the same time you can see her front. The male then proceeds to finger the woman and then starts making out.
1.) Guy: Dude, I just pulled a 3 in 1 on Michelle!
2.) Other guy: Sexy.
by isw12786 August 23, 2006
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