Flappasaurus 

Flappasaurus – A common condition of people from Central European decent(most notably from the Germanic / Franco regions) where the sufferer of the condition bursts into uncontrollable fits of panic or excitement characterized by a frantic arm swinging or "Flapping".

This condition is not curable and sadly for those who suffer from it they are quite often the butt of all jokes in the office / social environment which in turn leads to social alienation or certain stigmas.

Flappasaurus' are funny

Flappasaurus by TPD OH YEAH December 6, 2009

flameasaurus rexatron 

weed that is so good that your nose is changed by the sheer pungency of its massive THC crystals and its resin crystals are so swollen with glorious THC globs that it appears as though it is shiny like the largest and brightest star in the entire galaxy.The strength of this weed can only be compared to that of 10,000 robot tyranosaurus rexes created by skynet, the company responsible for the terminators and subsequently the attempted genocide of the entire human race.

"Man, that was some flameasaurus rexatron."

Dude, its your lucky day, i got some flameasuaurus rexatron for ya bruh."

flameasaurus rexatron by Rastaman6290 February 24, 2009

Flakasaurus rex 

n. (flake-a-sore-us-rex) a. Someone who is unreliable and never does what they say they are going to do.
b. The biggest flake you know.

Tim: Hey, John, I thought you said you were coming.

John: No, dude, I have to wash my dog.

Tim: You're such a flakasaurus rex.

Flakasaurus rex by -Angel- July 16, 2011

flapasaurus 

One that talks too much. A person that can't shut up. A yapper.

Sharon, why don't you ever shut up? You're such a flapasaurus.

flapasaurus by stek69 July 30, 2009

fapasaurus 

a person who faps all the time

This guy is a fapasaurus no matter where he goes

fapasaurus by 658hit May 16, 2014

floppasaurus 

your mom flops on floor a lot

Bobbys mom is a floppasaurus

floppasaurus by treytrey101 March 13, 2019

flopasaurus rex 

That one friend who consistently flops on the plans

Theo is a flopasaurus rex

flopasaurus rex by RaekwonMan May 7, 2018