Flash gang 

A group of people who set a time with there cell phones to meet at a certain place and time to do gang stuff and are just as quickly gone in all directions.

I am in a flash gang.

Flash gang by The wrath of God September 26, 2010

russian flashbang

When you cum in a girl's eyes and slap her ears simultaneously

She said she loved me, right as she was blowing me. I gave her a Russian Flashbang and got the hell outta there.

russian flashbang by Tactical Russian October 22, 2013

mental flashbang 

Something so unexpected or outlandish that you shut down for a second. Usually without clarification from the speaker.

Bill: "I was eating these really good chips that I found at Dan's house but I didn't know the name. turns out I was actually eating his cat's shit"
Hank: "..."
Bill: "...so I was at the arcade the other day..."
Hank: "What the fuck dude? you're just gonna drop a mental flashbang like that?"

mental flashbang by dpgf April 15, 2021

Flashbanged 

Getting unexpectedly blinded by something bright such as a flashlight

I just got Flashbanged by that lamp, becareful

Flashbanged by JurassicEels May 20, 2018

Flashbang 

When you cum in a girls eyes and slap her in the face while screaming

Yo dan I flashbanged your nan last night

Flashbang by Master jacker July 31, 2020

The Flashbang 

When you're about to cum, aim for her eyes to blind your opponent then smack her in the back of the head and scream "Counter-Terrorists win!"

Example of "The Flashbang"
guy: pulls out and aims for her eyes
girl: "omg im blinded!"
guy: smacks her in the back of the head
guy: "counter-terrorists win!!!"

The Flashbang by AlexKK April 28, 2014

german flashbang

When you fill a bottle of cum and make it explode on impact. It then explodes and cum goes everywhere, including people's eyes...

German soldier: German Flashbang out.
Russian soldier: it's in my

eyes

german flashbang by Scout 411 June 14, 2017