Mextraterrestrial 

Used to describe an illegal immigrant or "alien" from Mexico that has crossed the border into the United States or Canada.

Why do we even have border patrol if all these mextraterrestrials keep getting across the border anyways?

Mextraterrestrial by Zboogie April 17, 2011

sextraterrestrial 

A fine ass alien that likes to bone.

The sextraterrestrial made crop circles in my pubes.

sextraterrestrial by Soup4theSoupGod December 24, 2008

extraterrestrial beings 

alians

me: look Extraterrestrial beings!!
you: can't you just say alians.

extraterrestrial beings by heiogtakk October 4, 2017

extraterrestrial 

A different creature from another planet like an alien usually named Aquene,Sato,Aeris, and Bailey!

Aquene and Sato are Extraterrestrial so are Aeris and Bailey

extraterrestrial by Cupcake:3 November 27, 2013

the extraterrestrial 

The extraterrestrial is performed by deliberately (in some cases, nondeliberately) taking a shit on a toilet seat. This may be performed either as an act of revenge or a practical joke.

That asshole definitely stole my Kindergarden Cop dvd so I'm totally gonna perform the extraterrestrial in his bathroom.

the extraterrestrial by Dennis T. June 28, 2010

Extraterrestrial 

Next level. So mind-blowingly, extraordinarily out-of-this-world impressive that everything earthly is now mundane.

The Bugatti Chiron is flat out extraterrestrial.

Chad fucks like an extraterrestrial.

There had to be something extraterrestrial in those moonrocks.

nocap I was woke like an extraterrestrial after taking nzt48

Extraterrestrial by Airone April 26, 2019

extraterrestrial breeding 

The act of having sex with an alien species.

I just did an act in extraterrestrial breeding and now I have space aids

extraterrestrial breeding by Dubiks January 18, 2019