181

The (incorrect) metric conversion of the sexual position, the 69er, heard on a forgotten comedy show in the 90's and perpetuated by those who have repeated the joke and not checked a conversion calculator. 1 inch = 2.54 cm, answer should be 175.26.
Some credence should be given however for the homonym, "one ate one".
They were urgent and ravenous, satisfying each other simultaneously in a 181.
by bollux2 September 01, 2011
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181

In the United States Army, Physical Fitness tests are given every six months and soldiers must pass with a 60 in each of the three events adding up to a minimum passing grade of 180. A 181 is when a soldier gives the minimal effort due to extraneous circumstances to pass the Army Physical Fitness Test. So a 181 is an acceptable, yet less than enthusiastic effort in order to accomplish a goal.
Ex. 1
Soldier 1: Oh man today is a 181 day.

Soldier 2: Definitely, I'm so goddamn hungover from penny beer night I can hardly stand up.

Ex. 2
Jack: Man I really don't give two shits about this final exam.

Joe: Just make it 181 and call it a day.
by The Sugabear April 29, 2010
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181

The numerical representation for a ménage à trois between one woman and two men.
Dave: "Hey bud, she looks prettty wasted!"

Ty: "Ya, she does."

Dave: "Shes hot man, go in for the kill, we'll pull some 181."

Ty: "Ménage à trois?"

Dave: "Yeah, but if we pull a clash of swords, I'm out ASAP."

Ty: "cool."
by Supa Dave McKinnon February 16, 2011
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181

The number after 180 and before 182.
Teacher: What comes after 180?

Class: 181!
by Indigopluto January 18, 2010
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Ms 181

A school that is full of hoes and the some of the students there can fight and all the girls are cute and the boys are full of shit and students lose there virginity in the bathroom
Ms 181 is a okay school
by Cutiegirl12 May 23, 2019
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hulk 181

The most overvalued comic book in existance. Very common in high grades, and yet very highly valued.
You got a Hulk 181? So what! My brother has like 7!
by Kevin Rey May 06, 2005
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181

The number between 180 and 182 that now has a definition
181 is a number
by guy who defines numbers December 05, 2020
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