Skip to main content

Invertible

In linear algebra, an n-by-n square matrix A is called invertible (also nonsingular or nondegenerate) if there exists an n-by-n square matrix B such that:

AB = BA = I (where I is the Identity Matrix).

Otherwise, in life, it refers to the case where something can be transformed into something else and transformed back.
Randy: Sally is so invertible; real marriage material.

Sandy: I know, nonsingularly so. Put a few drinks in her and you can get her on her back and yet in the morning she still gets up and cooks you breakfast.
Invertible by Len Bakerloo July 6, 2016
Urban Dictionary Merch
Your favorite words on things you can wear, drink from, read, or give to a friend.
The Urban Dictionary Store sells gifts you’ll have to explain.

Dominant and infertile 

Person 1: bestie you look submissive and breedable

Person 2: actually I’m dominant and infertile

Invertebrella 

A condition that an umbrella can suffer in a sudden burst of strong wind. Sometimes the condition can be reversed and the umbrella can be saved. Typically the umbrella ends up in the trash and the owner of the umbrella ends up soaked and angry.
Lynda enters the house soaked...

Marty: Whoa, you're soaked! Don't you have an umbrella?

Lynda: I did, but the wind got hold of it and flipped it inside out. I tried to bend it back, but it just broke, cut my finger, and I got soaked. It's in the in the trash.

Marty: Bummer. Bad case of invertebrella huh?

Lynda: What?
Invertebrella by m_piet September 2, 2009

Infertiles 

These are all your friends that don't have kids yet or have chosen to never have kids.
They only invited the infertiles over to the house warming at their new house because they didn't want it trashed by kids.
Infertiles by rocketrex May 10, 2010

infertile 

Infertile mean's someone who can not get pregnant.
infertile by Your briefcase October 19, 2010

incerdible 

So incredible that the correct pronunciatin and spelling of "incredible" does not describe fully how incredible something is.
Wow, that Erin C. is incerdible.
incerdible by Oedipus_Rex April 19, 2005

intextible 

Derives from "insensible."

When someone pulls out their cell phone and completely ignores you while you're talking.
Todd: "I have a truly heartwarming story for you, Drew. I was saving small children from a massive wreck on highway I sixty-four and-"

Drew: "Hold on. This fruit gusher had more filling in it than usual. Let me text Kate and tell her."

Todd: "What an intextible son of a bitch!"
intextible by bubastis March 6, 2010
More from Urban Dictionary

proper lad 

a lad that is such a lad that he is a proper lad
person1:did you see bob
person2: ya he was a proper lad
Word of the Day on October 29, 2026
The number of years you are still sexually active
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
sexspan by Dr Kat April 21, 2022
Word of the Day on October 28, 2026
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.
You didn't get any napkins with your takeout pork fried rice? Womp womp.
womp by 175623226 November 3, 2011
Word of the Day on October 27, 2026
When your wife’s boyfriend let you sleep past 8pm 😎😎
Wife’s boyfriend: You have 5 more minutes
Me: Poggers!
Poggers by Just_Charles April 14, 2020
Word of the Day on October 26, 2026

Oblication 

A vacation, feeling more like an obligation, that involves visiting or staying with family.
So Joe where are you taking the kids for spring break vacation? We are going on an oblication to Boca to visit my mother-in-law.
Oblication by kimmerr May 5, 2011
Word of the Day on October 25, 2026

Surf Dracula Syndrome 

A phenomenon in film/television series, most notably streaming series, where the main premise is drawn out to such a point that it takes an entire season or more to get the parts of the series the audience is actually interested in seeing.

For example, if a series is titled "Surf Dracula," a majority of viewers would tune in expecting to see Dracula surfing by the first or second episode. However, the entire first season would instead be tedious padding and backstory before finally ending with Dracula surfing in the last five minutes of the season finale.
I watched "Smallville" on Netflix the other day. Dude, it was ten seasons of filler before he finally flew! Major Surf Dracula Syndrome!
Word of the Day on October 24, 2026
Load more