a term used on social media for posts that contain flashing lights or flashing pictures and is used as a warning for people who can't handle it or who have mental illnesses because it could trigger seizures for them etc..
*sees a post*
the caption reads : flash warning!!
*quickly clicks off*
you : oh thank god i could have had a seizure
the caption reads : flash warning!!
*quickly clicks off*
you : oh thank god i could have had a seizure
by Lana Del Rey is god1 April 26, 2021

The glimmer of light in a photo that indicates one has taken his or her picture in the mirror and the flash has reflected off of it, often found in photos of people who might be classified as white trash.
by King Katastrophe September 4, 2010

A boner that arises immediately from the presence of a really hot chick or some female body parts on serious display.
by Dan_07 October 26, 2011

by jon biscuit January 20, 2009

Flash Brown is a male pornstar who specializes in interracial porn. Probably one of the most professional pornstars out there, Flash Brown always puts a smile on my face.
by Max "Hillary" Brown July 26, 2016

Man 1: hey dude, i don't what i wanna get for my next tattoo.
Man 2: It's okay the place on 48th and 9th has some dope flash art.
Man 2: It's okay the place on 48th and 9th has some dope flash art.
by Berkeley Blue April 4, 2017

Wife to husband -“ want to turn on a movie for the kids and meet me in the bedroom?”
Husband to wife- “are you having a horn flash?”
Husband to wife- “are you having a horn flash?”
by Poppy$eed October 6, 2019
