Flatliner 

A mindless person or someone with no personality; gives blank stares, especially when presented with ideas or facts that should arouse some sort of reaction in a sentient being. Basically brain dead or mentally challenged. It would be improper to use this against someone who has a real diagnosed disability of course. More like, if you meet someone in a professional capacity whose title suggests they are intelligent, but really they just stand around looking dumb.

"I told Guido that the server was down and he said 'So...?'. Is that guy a fucking flatliner?"

Flatliner by Dick Asplundher May 8, 2009

Flatline 

Upon the act of fingering a woman and discovering the overwhelming stench of her vagina on your fingers causing your penis to regress into your stomach from how fucking bad it smells

Man: Dude i fingered my girlfriend that day and it smelt like shit
Man 2 : Whoa! dude how did you keep a boner?
Man: I didnt bro i fuckin FLATLINED!

Flatline by Panda0nXtc March 31, 2010

flatlined

The non-activity that one receives when he/she is being rejected.

Megan couldn't understand why Rich flatlined her - she began to wonder if it was because of all the junk in her trunk.

flatlined by Snocap September 20, 2006

Flatusize 

Farting when exercising.

geez...I flatusized when doing situps at the gym.

Flatusize by Scubadoobadoo January 9, 2009

FLATULOGENIC 

Adjective describing causes of flatulence

Beer and chili are flatulogenic.

FLATULOGENIC by Smintheus March 7, 2011

flatulimp 

when a fart alters your gait.

Oh, that smell! It was then that I noticed his pronounced flatulimp.

flatulimp by elfrouter April 19, 2015

Flaterizer 

Basically an FTM binder. It makes the boobs go bye-bye.

Ftm 1: Ya know that feel when you get in bed and you're all comfy, then notice you're still wearing ur flaterizer ??
Ftm 2: Hell yeah, it can suck a dick

Flaterizer by mychemicalromacexx September 8, 2018