flashgasm 

Having a hotflash and an orgasm at the same time.

I had a flashgasm last night, and thought I might spontaneously combust.

flashgasm by Hotflashhottie May 30, 2023

Flatchgasm 

When your giving it to your girl hard and you bust ass just as you pull out and spray your load.

OMG you guys I was banging my girl on the top bunk of the trailer and I totally had a flatchgasm! I thought she was going to Ralph as she rolled off the bed and ran away. Fucking great.

Flatchgasm by DEEZ123 January 28, 2017

Flashgag 

1. A puking sensation induced by the smell of a particular alcohol with which you have unpleasant memories.

2. A vivid, usually personal, memory so cringe it makes you gag.

In chemistry class

Ella: Luna, can you add that ethanol to the solution?

Luna: Bro I can’t, way too many flashgags.

Flashgag by FlashySofie July 18, 2019

Flashtastic 

Originates from the DC Comic cartoon character - The Flash.

It is used to describe things that are superhumanly amazing, and awesome, pretty much THE best thing EVER.

It can also be used as an alternate form of the word "go" when playing games.

Typically it is best used to describe activities that you want kids to get REALLY stoked about.

Alright guys! This game of dodgeball is going to be FLASHTASTIC!

Ok kids, when I say "flashtastic" you are all going to spin around 20 times and then begin!!!

Those tater-tots are flashtastic. totally.

Flashtastic by the JR January 1, 2009

Flashgamer 

One who plays exclusively flash games off the internet for free and does not partake in the normal gaming world's normal video games. Also known as a subgamer or a nongamer.

That guy only plays free internet games. He must be a flashgamer.

Flashgamer by 12345pene March 6, 2015

flatugasm

the pleasant state of relaxation and relief reached after the successful deletion of gas!

Dante smiled and shivered as he farted "ahh" he sighed "That was a complete flatugasm"

flatugasm by Ruphasgutz July 28, 2014

Flanagasm 

The inability to do anything except orgasm in the presence of John Flanagan.

Did you go to John's show last night? I had a Flanagasm.

Flanagasm by sampsonlong March 29, 2010