fuckasaurus 

an obese woman who attempts to rape a man. after said rapage, she eats him cause she is no longer satisfied with other food

Kim is such a bad fuckasaurus, she never finishes the man.

fuckasaurus by Dylan Ver Way November 20, 2009

Fuckasaurus 

1. Someone who is completely addicted to sex. See whore and slut
2. When a cuntasaurus rex meets a cockasaurus rex. It's HUGE.

1. Sally is such a fuckasaurus. She had sex with like 15 guys last month.
2. My huge cock fucked a big cunt last night.

Fuckasaurus by ohshitmyspeakerblewup February 23, 2011

fuckasaurus 

When you're really in the mood with her and do it while its dark.

Rick Riordan is a real fuckasaurus.

fuckasaurus by lil dicky daddy June 3, 2018

Fuckasaurus Rex 

An elderly individual who is highly sexually active

"I hear Quincy down in hall A of the Happy Homecomings retirement home is a fuckasaurus rex!"
"o rly?!"

Fuckasaurus Rex by Phantomman December 21, 2005

fuckasaurus cunt 

Very similar to the fuckasaurus rex but much more of a cunt. An old, sexually active twat.

You fucking fuckasaurus cunt!

fuckasaurus cunt by tapman kitchenklub October 21, 2010

Fuckasaurus rex 

An absolute unit they often participate in orgy's and large sex circles they can often take women and men not gay tho |; they also must be older than 60 to be a prehistoric fuckasaurus rex

Hot girl: I see that guy absolutely slay those seven girls
Gay friend: yes I'd call him daddy

The fuckasaurus rex: thank you friend

Fuckasaurus rex by Cumbobulator March 18, 2021

fukasaurus 

What you say when the f-bomb just doesn't cut it, and you want to use a word that resembles the win factor of dinosaurs. Is possible to add the suffix -rex if even fukasaurus can't illustrate your inner frustrations.

friend 1: ur mom just died
friend 2: oh fukasaurus

friend 1: ur zips undone. and your mum just died
friend 2: holy fukasaurus-rex!

fukasaurus by ti3nt October 6, 2009