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For a male penis to go from a state of softness or relaxation to a state of an uncontrollable erection in the penis.
Mainly caused by a beautiful or attractive female when seen or spotted with the eyes.

A combination of the words: Instantly (Without Delay or Immediately) and Hard (Not easily penetrated).
"Man, I just got instahard when she walked in"

"Lola Luv = Instahard"
Instahard by Vinni-V February 16, 2010

Instafart 

A powerful fart, immediately filling the room with a terrible smell.
We were riding in the car and my wife let out an Instafart making it hard to keep my eyes from watering.
Instafart by Willybeee August 16, 2014

Instabam 

Slang for jacking off to someone’s image and comments on Instagram.
Since “pandemic life” has so radically changed our social lives, his favorite online activity is now the Instabam!
Instabam by Dr Bunnygirl September 5, 2020

Instacart 

A grocery delivery service where some stranger drives to your house with the groceries you order on it.
I need some stuff but I have to take care of my grandma for the day. I'll just Instacart it.
Instacart by legal4s April 14, 2021

InstaBeef 

Beef or some form of aggression/hate, between 2 people, formed from an argument or insulting comment on Instagram or any other social media.
I can't believe she made that comment! Now we got #InstaBeef!
InstaBeef by MentallyEvolved September 9, 2018

Instablast 

1) v. to "like" every image in one's Instagram feed in a single, continuous session without regard for the quality of or interest in the content.

2) v. slang term used by millennials to describe a sex act by a male who prematurely ejaculates.
It took me forty-five minutes to Instablast, since I hadn't looked at my Instagram account in several days.
Instablast by joshuaware January 25, 2016
More from Urban Dictionary
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
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
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