Technically a flash-back is a device. It is when the author stops writing about what is going on in the story and "jumps back" to write about what happened in the past.
During a flashback, you do not use past tense or describe anything as if it already happened - a flashback is done as though it is happening now.
And it should not be used! Effective writers show their information to the readers without using contrived devices like flashbacks or prologues. You will see flashbacks used in movies and television because there is no good way to show what's going on in the character's thoughts - in your writing, you can show the information by having the character tell someone else about it, or by remembering how they felt during the time. Flashbacks take the reader out of the story and toss them into another time - thus, a good writer doesn't use them.
Mega Mind
In "The Mustache" by Robert Cormier, the protagonist's flashback to his childhood memory of wanting a mustache is a significant example of flashback. This memory foreshadows the protagonist's later deception and identity crisis when he decides to wear a fake mustache to deceive his wife.
When Percy sees daedulus in his dreams.
In the song "Paradise by the Dashboard Light," the main characters remember an experience they had when they were seventeen. the juxtaposition from the present to that moment in time is a flashback.
Flashback
An example of a flashback in "The Diamond Necklace" occurs when the narrator provides a detailed account of Madame Loisel's life leading up to the day she borrows the necklace. This flashback helps establish the character's background and motivations for her subsequent actions.
I just had a flashback on the day i fell into 100 bucks or that flashback was bad or haha ha i just had a flashback
There is no prefix.
This is one form of a "flashback."
atari flashback
The flashback was about when my dog died.
flashback