The Male-to-Female equivalent of a "Snowball". Wherein the Male partner spits a large amount of vaginal fluid (gathered through oral sex) into the Female partners mouth while kissing.
"So this guy sucked up all my pussy juice, and spit it into my mouth. I was like, What?! He was Flash Flooding me!!"
by Jettick Dussen August 21, 2011

The girl that I was afraid to ask out sneaked up behind gave me a surprise flash fuck.
Before the Ayatollahs shut down the nightclubs, many an Iranian enjoyed a flash fuck.
Before the Ayatollahs shut down the nightclubs, many an Iranian enjoyed a flash fuck.
by Ali Bashir February 1, 2006

by CoochieEnthusiast March 6, 2021

(transitive verb) To obscenely expose one's testicle or scrotum to another, either by pulling up one's shorts or by other means. A nut-flash is typically meant to frustrate or surprise the victim.
(noun) The action of nut-flashing.
(noun) The action of nut-flashing.
Spencer: (To Lauren, aggravated) Laurrennn! Cooper nut-flashed me!
Cooper: No I didn't! I was only itching myself!
Cooper: No I didn't! I was only itching myself!
by Mezzo7 September 2, 2012

The time that it takes For 2 stroke To forward a pic or meme that she receives From E to The year 9 advisers.
Forwards content as quick as a flash. 2 stroke - OMG Jamie can you believe this fucking guy... Look at what he sent me now😤
This is the last time again I swear’.
‘Jamie‘ - You just can’t hate this guy ???🤗
This is the last time again I swear’.
‘Jamie‘ - You just can’t hate this guy ???🤗
by Peter gregson July 19, 2020

signals the transaction of a drug deal.
"Let's Flash the Lights, so the drug dealer will know we're ready to make a deal."
Gob: Now, we wait.
George Michael: How long?
Gob: Who knows? An hour ... maybe five.
Derek: Drug delivery. You wanted some marijuana?
Gob: Now, we wait.
George Michael: How long?
Gob: Who knows? An hour ... maybe five.
Derek: Drug delivery. You wanted some marijuana?
by G.O.B. and George Michael December 26, 2008

When a guy sweats profusely around other guys he finds attractive. He does not have to sweat due to the heat, but due to the hotness of the guy(s) in his presence.
by Dagrownman July 31, 2019
