The concieved notion that you can accomplish anything, simply because it is required of you in that moment. Even if you have no background of doing this or there's been no setup for you being able to do this in the past.
Basically a lousy way to explain away a Deus Ex Machina.
As seen on the Flash:
The Flash somehow manages to get a train to vibrate at the same speed he is, so that the train goes through some rubble in the road.
Later:
Kid Flash: "How did you do that?"
Flash: "Because I had to."
Me, watching the show: That's some Flash train-logic right there!"
showing respect to fellow racecars/car enthusiasts
"they gave me the Flash Fog Light FFL, they seem chill, word"
A whipped bloke who flashes his doodle
joel edwards doodle flashed dirts mum
Flash hey can also be referred to as a dry text to start a conversation. It would consist of just "hey" and nothing else. This is utilized by someone who is feeling sassy or annoyed with the other person. They want to talk to them but at the same time they are bothered that the other person did not initiate first.
Person 1: "Hey"
Person 2: "No need for the flash hey, I've been busy"
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"
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!"