brachiosaurus 

(n.) Also known as a Mighty Brachi, this majestic animal has come to represent all things B.O.O.T. Like the fabled organization, this animal is both powerful and mysterious, and its name is quite fun to say. Channeling the spirit of this animal requires a hand motion resembling the its slender, flexible neck.

An example of this animal can be found in the terminal of the Chicago O'Hare International Airport.

BBBBBBBBBBBBBBBBBrachiosaurus! Mata-mata-mata-mata-mata!

brachiosaurus by TheLoudestFan April 16, 2009

brachiosaurus 

Long necked dinosaur from late Jurassic. An ancestor of Miami Heat power forward/center Chris Bosh.

Did you see the brachiosaurus make that layup.

brachiosaurus by dorkynessftw January 13, 2014

Brachiosaurus HeadButt 

When a guy is spooning with a woman in bed and poking her in the butt with his penis.

I couldn't help noticing you gave me a Brachiosaurus headbutt last night. I couldn't get any sleep.

Brachiosaurus HeadButt by Garretted September 6, 2020

Brachiosaurus 

Someone who’s really annoying and looks above everyone else. Same name as the dinosaur 🦕. Also means they have a small penis.

The dude I was talking to was such a Brachiosaurus

Brachiosaurus by Haha Anushka January 28, 2021

Bronchiasaurus

The apparent weight on the lungs of a COVID-19 sufferer.

With no ventilator available, straining for breath, it felt as if he had a Bronchiasaurus on his chest.

Bronchiasaurus by Monkey's Dad March 25, 2020