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Momylation 

1. The process of impregnating a female; thereby transforming her into a mom (mother). Often used casually in reference to copulation, the formal definition includes the entire process of intercourse, fertilization, gestation, and birth.

2. The protection of an alcohol with a methoxymethyl acetal group. The momylated alcohol is stable to most conditions, notable exceptions including acidic media and a few oxidizing/reducing agents.
Dude when it comes to momylation, Doug is the master. He momylated his wife, two primary alcohols, and a phenol all in one week.
Momylation by Big Diggity April 15, 2015

Mixulation 

The mixulation at that club was rad.
Mixulation by $C-Note$ April 4, 2016

Morbulation 

When you are so fried that you cannot move your body but the inside of you feels like it’s moving…like marbles.
Bro I took 10 blinkers, I am experiencing high levels of morbulation.
Morbulation by Morbulation January 16, 2022

matulation 

(n.) The act of masturbating and ejaculating while in bed.

Root origins: Heb. Mittah- bed

matulate(v.)
matulating(adj.)
Dude, she totally matulated last night-- just look at the bed.

Jon matulates every night while his soon to be ex-wife has sex with their body guard.

The art of matulation is hard to perfect, but with practice and focus, one can matulate in expert speed.
matulation by hornybuttkings June 29, 2009

modulatin' 

"What it eia Benny"

"Nuttin, jus modulatin'"
modulatin' by Ron May 13, 2005

Modulation hands 

Commonly misenterpreted for jazz hands, modulation hands are visually the same, except performed during a modulation in the piece of music which is being performed/listened to. The modulation in most cases is of a semitone difference, followed usually by a change of key. Such modulations (and thus oppertunities for the use of modulation hands) are most commonly found in music of a slightly more cheesy varietly, and gospel music.
Dude! I was singin' some gospel music in choir yesterday and I was just like 'Modulation hands!' when we got to the key change...
Modulation hands by Gemgems101 August 1, 2011
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
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