Instantaneous Verticality

When a function is continuous but has an undefined derivative.

That right there is instantaneous Verticality!

by Marett's Definitions Writer October 28, 2025

Vertical

why the fuck did you put vertical into an urban dictionary

this man put vertical into the urban dictionary
what the fuck

by Raptor_but_its_not_already_use January 25, 2021

Vertical Toilet Paper

The act of putting a toilet paper roll vertical on the holder to show your gay lover he can sneak in when your wife is asleep tonight. This is an advanced move that needs at least a level 5 peeping Tom as the male mistress. Is common among boys/men names Chris that have long skinny dicks and gigantic mushroom tips. Beware.

Hey Tony look out for my “Vertical Toilet Paper” tonight ;).

Let Mo know he missed out on my “Vertical Toilet paper”

by Rufio171 February 22, 2018

vertically challenged

someone who is short

friend 1: omg look at that person over there!
friend 2: haha! talk about being vertically challenged!

by cherrychambers06 December 27, 2021

my vertical is 21 centimeters

a random thing my classmate named Lily said

classmate1: woah woah look at this
classmate2: girl what the fuck

Lily: my vertical is 21 centimeters *said Lily aggressively*

by anonymous May 2, 2024

Vertical trailer

A townhouse or row home...not in an upscale neighborhood. The whole neighborhood or development would be a vertical trailer park.

"Let's go hang at Ryan's."
"Are you kidding me? What a dump! He lives in a vertical trailer park!"

by Catcherintheeye June 27, 2013

vertical week off

A vertical week off is a block of five to seven days of vacation occurring every seven days in a consecutive series of weeks, rather than the five to seven days occurring consecutively in the same week, or a horizontal week. The distinction is evident from the direction taken by selecting, with pencil, pen or mouse, the days of choice from a spreadsheet or paper calendar.

Trying to avoid having work pile up if new cases were ignored for nine consecutive days, the clerk took one extra day off for five weeks by selecting each Thursday from the vertical column of the calendar app.
Clerk said: “It’s a Vertical Week Off so the in-box won’t get full.”

I said: “I hope you aren’t planning to rent a vacation retreat with that vertical week schedule. Maybe you could just take the work with you.”

by Muttageek July 14, 2020