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People from outerspace. Generally peace loving and wise, they've come to Earth because we've got velcro and they love that shit
I've got some Aliens living in my basement
by Quicksand Jesus May 02, 2004
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Otherwise known as Mexicans, they are Tronald Dump's worst enemy, for they are known to steal jobs, ship drug cartels, cross borders, rape bitches and, worst of all, divert angst and hatred towards the 2nd amendment, the priority nemesis of the Aliens. They usually equip food tubes as their main weapons, sombreros as armor and UFOs as gunships.
Aliens need to be deported. They steal the jobs we could've done but can't nor don't.
by picklestein June 23, 2016
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1. In terrestrial terms, those who come from another country, a.k.a. immigrant.

2. Usually refers to any being that isn't from the planet earth, a.k.a. extraterrestrials (E.T.)
by Loki August 04, 2003
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An excellent science fiction movie series. Features a race of insect-like aliens called Xenomorphs, which have acidic blood and a collective mentality. They lay eggs like normal insects, but the larvae can only mature into adults by leaping onto a host organism's face and injecting themselves dow into the digestive tract. The adults burrow themselves out of the host, killing it in the process.
Basically, if you have an alien Xenomorph on your planet, your species is doomed.
Not even the Marines were tough enough to face the Xenomorphs in the Aliens movie.
by AYB October 17, 2003
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Something that stupid people say don't exist
Out of over 1 billion planets in the universe I would think more than one has aliens on it.
by Spikesy July 18, 2006
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1. A person from a foreign country
2. An extra-terrestrial being.
Paco is an alien
Oh my god is that an alien?!?!
by PhatDawg August 01, 2005
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Being not of this planet earth.
"Hey mom, is that an alien or a robot?"
"I think it may be both, it's Al Gore son, just stay away from it."
by Ike b September 23, 2005
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