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Diagonalize 

To diagonally cross a parking lot, while walking, to shorten the distance to the destination.
It started to rain, so we diagonalized to get there faster.
Diagonalize by L. BENTLEY November 27, 2023

Diagonalizability

just take its fucking diagonal matrix
-Yo, did you review Diagonalizability for our Linear final?

- Diagowho?
Diagonalizability by selim5 June 7, 2018

diagonaling 

A sexual act. The man and woman are in what would appear to be missionary position, but their heads are rotated around 45 degrees with the axis at their genital connection.
Aw, man, I tried diagonaling with Alice last night. It was an amazing sensation.

diagonalizing 

To diagonalize somebody means, for example in psychotherapy, to point out incoherence / inconsistency in somebody's beliefs, also can be used in an argument in a more confrontational manner. Speaking in terms of computer science and math, diagonalization is related to stuff like: Lawvere's theorem, oracles, proof by contradiction
Timi: u need to stop diagonalizing ppl so bad bro, nobody understands nothin man; and them hoes get "the ick" if u know what I'm sayin
Myself: aight my bad gang. I appreciate ur kind feedback but Timi, if nobody understands nothin as u say, how come ur able to say this to me? Maybe it really makes sense :D
Timi: here we go again :)
diagonalizing by Sonic_tachyonic December 6, 2024

Stealthie 

when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.

This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"

FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"
Stealthie by gwenhyfar October 2, 2016
Word of the Day on May 25, 2026

Summer Teeth 

When someone has a lot of missing teeth.
Mannn, that dude has summer teeth!
What do you mean?
Summer here, summer there...
Summer Teeth by BeckPot August 2, 2012
Word of the Day on May 24, 2026