flash block 

v. Manually placing opaque paper, such as an envelope, over an abnoxious flashing advertising banner--so that it is easier to concentrate on signing into a social networking site (using a complicated password), or to concentrate on writing a gripping response to an intense incoming message, for instance.

"Gotta flash block that trailer or I'll never get in!"

flash block by WorldofAshcraft June 1, 2007

Black Flash Mob 

a large group of black people mobilized by social media to meet in a public place for the purpose of doing illegal or criminal activity of short duration.

A Black Flash Mob hit up a 7-11 in Philadelphia. They completely cleaned them out!

Black Flash Mob by JOhnny Jizzer August 22, 2011

Black Flash 

The term for a black man with premature ejaculation

Person 1: "You hear about Tyrone?"
Person 2: "Yeah, he got that black flash"

Black Flash by CoochieEnthusiast March 6, 2021

Black Flash 

A black man with premature ejaculation

Bobby: "you hear about Tyrone?"
Brock: "yeah he's got the black flash"

Black Flash by CoochieEnthusiast March 6, 2021

Black Flash 

Term coming in its definition from the slang of the anime and manga series "Jujutsu Kaisen", written by the author Gege Akutami, is a phenomenon that occurs when cursed energy is applied 0.000001 seconds before a physical hit, in order to put it into perspective, a "Black Flash" can result in being thought of as a kind of "critical hit"

According to this sense, it could be perceived as something as "When you do anything that is recognized as remotely rare on its probably to occur and also during a considerated short period of time", while being said in reference to the original term.

An example from it could be something in the lines of:

"X" Person: "Hey yoo man, me and my homie just hit the sickest and cleanest dab me up from all time!"
"Z" Person: "Really? in that case I do believe that you and your friend just did the equivalent of hitting a Black Flash in real life"

Black Flash by Kosei May 4, 2024

Black Flash! 

The name of an attack from animanga series 'Jujutsu Kaisen.' A Black Flash is a distortion in space that occurs when a sorcerers cursed energy is applied within 0.000001 seconds of a physical hit. When a sorcerer is able to do this, their cursed energy flashes black, and the force and strength of their strike is equal to a normal hit amplified to the power of 2.5.

Gojo Satoru: "Ya know. That "Red" just now... Still hasn't exploded.
Ryomen Sukuna: "Gah! From behind me..?!"
Gojo Satoru: "BLACK FLASH!"

Black Flash! by lucidvision August 2, 2024

flashblack 

when you flash back to your blackout night

1: "Yo Billie, I just had a flashblack of what happened at Alibi's last night!!!"

2: "Melia, I just remembered falling on High Street - what a flashblack!"

flashblack by 12lamby May 7, 2012