freakasaurus 

Basically someone crazy. Kind of a synonym of "freak", but there is no humor in calling someone a freak, so if you want humor, call them a freakasaurus.
Freakasaurus was also mentioned in episode 15, season 2, of Star Trek: Voyager.

Has anyone ever told you you're a real freakasaurus?

freakasaurus by jdm89 January 25, 2017

Freakasaurus 

some one who is very un intellegent and is related to a dinosaur

shut up u freakasaurus!!!!

Freakasaurus by Amba lee May 11, 2003

Freakasaurus 

n. an attractive female that is known to dress in a sexy manner and reference or perform kinky activities. Also common to exhibit flirtatious behavior towards the opposite sex and in some cases the same sex. Age is deceptive and may appear younger than actual age.

a/k/a Freakasaurus Rex

1. I was amazed by the freakasaurus I saw wearing vinyl boots standing in line for the club in Vegas.

2. After five shots of tequila Katie started making out with her best friend. What a freakasaurus!

Freakasaurus by Uncle Jimmy 69 August 30, 2006

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

freakasaur 

1. extreme freak
2. describing how freaky/freakish something is

1. "Did you see the new kid?"
"Ya, he's such a freakasaur."
2. "Did you see that hobo dancing in his underwear?"
"Dude, that was so freakasaur!"

freakasaur by xxx~Nemo~xxx July 4, 2009