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.

181 by The Sugabear April 29, 2010

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."

181 by Supa Dave McKinnon March 3, 2011

181 

The number after 180 and before 182.

Teacher: What comes after 180?

Class: 181!

181 by Indigopluto January 18, 2010

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!

hulk 181 by Kevin Rey May 6, 2005

181 

The number between 180 and 182 that now has a definition

181 is a number

181 by guy who defines numbers December 5, 2020

Rule 181 

It makes rule 171 do nothing and can never be countered by anything else

I invoke rule 181.

Rule 181 by Trashcan 6 May 5, 2022

Rule 181 

no rules on urban dictionary work on anybody with Alex in their name.

You have no power i invoke rule 181

Rule 181 by Trashcan 6 August 23, 2022