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Dallan's law

Dallan's law is an epigram that is typically stated as: "If angle looks like 90 degrees, then it is 90 degrees."

The law is often followed by mistake in math where someone assumes that an angle in a triangle is 90 degrees so they can use rules that only can be applied to right triangles.

"90 degrees" can sometimes be a metaphor for something else e.g., "If someone sees a car as red, then it is red". This means that a thing can be perceived as something else even though it is obvious that it only can be one thing. A washing machine can therefore be perceived as a rocket launcher if that person is stupid enough.
Example 1:

David: Why do I get the wrong answer when I use the Pythagorean theorem?

Teacher: Beacause it does not contain a right triangle. You probably utilized Dallan's law.

Example 2:

David: What a nice avocado you got there!

Åsa: Thanks David, but that's a potato. I guess you're right though according to Dallan's law.
by Duckiiiii May 12, 2016
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Delanceyed

The salesman said the car could be driven home but it had no steering wheel, tires or engine. I was Delanceyed.
by CaptainMolotov June 4, 2020
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Related Words
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Delano, MN

A small town in Minnesota with a huge chicken statue that welcomes you in. Chock full of people who call themselves "hicks" but who have never stepped foot on a farm and drive lifted trucks from daddy's money. Feeling bored? Go hang out with these hicks in the local Mcdonald's parking lot! Or if that doesn't interest you, go crash one of the Finn parties and chill in a sauna (but make sure to pronounce it the right way or they will kidnap you and abandon you in one of their Finn bins.) Don't like hockey? You may want to move now because our town takes pride in our hockey team that can't get beyond the first round of the state tourney. And if you didn't know...Delano has the famous Fourth of July parade that literally everyone in the West metro goes to EXCEPT for Delano residents! Delano is your typical small rural/suburban town. Everyone graduates and you either want to get the hell outta there or live there forever. But hey I mean...At least we aren't Rockford or Orono.
"Hey, wanna go to Delano, MN this weekend? Haha...JK"
by chickenman69 February 22, 2022
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Delanny

A girl with the most beautiful brown eyes in the world, she's "fun sized", oh and she has really really nice hair also!! And she has a gorgeous smile, that makes you just want to kiss her. She gives the best hugs in the world!! Also, when she holds your hand, you dont feel like letting go... Overall she is the most beautiful and gorgeous girl in the world... :)
Delanny, is a unique name.
by thisonedude;) August 19, 2011
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John Delaney

John Delaney also known as the dude that is polling at a record-breaking 0%!
Person: "my wife just left me... and he sent me a video of her fucking a Dude!."
Person: "well... at least you are not John Delaney!"
by Lil Gucci Bag June 26, 2019
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Adore Delano

Daniel Anthony Noriega is a- the best American drag queen in drag race herstery. If you have a problem fight me not my wife thank you. He’s mine and Hailey’s so back off Delilah🙃
Hailey: Have you seen Adore Delano?

Me: Yeah she’s hot as Danny and Adore I would lick her shoes either way
by Molly Noriega June 9, 2018
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Delanee

Delanee is a caring, sweet girl who is so beautiful but denies it entirely. She is always willing to help her friends. If you ever find yourself a Delanee, keep her and never let go. She is a diamond in the rough.
Girl: “Did you see that girl?”
Me: “Yeah, her name is Delanee. She’s by best friend and if you mess with her I’ll hunt you down and murder you!”
by e+a4ever_y’all February 11, 2019
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