short guys with big heads and ray guns from the Mars
marie
by beefy August 22, 2003
A person who doesn't sleep with a pillow
My roommate does not sleep with a pillow. She is an alien.
by shiroshitsuji September 10, 2014
your Mexican neighbor

Hispanic astronaut

some freaky ass jellyfish from the moon
victor Gonzales was so the first alien to land on the moon
by Kenny Robbers December 13, 2010
The common name which human use to describe any creature from other planet,universe.
The Creature which can be seen as a eight eyes monster or with giant spaceship which later destroyed half of the nation.
although, until now human have never encounter any "Aliens"
Aliens: We come in peace
Aliens#2: But like the U.S we bring our democracy with Ray Gun
by TheGoodTheBadandtheJesus March 17, 2015
The best nickname you could ever give your best friend Alison!
Girl: who is that girl she is soo pretty?
Me: Back off she is my alien!
bahhahaha
by Dotty5432 August 07, 2012
A big headed monster that humans don't like to interact with.
by noneyaaaaaaaaaaaaaa June 25, 2012
When you ask kids about aliens, they'll say BIG SPACE WIERDOS! well, infact they are actually Organisims from a planet that we have not discovered or discovered yet
Child: MOMMY A BIG FAT THING THAT SHOOTS GREEN EWIE STUFF IS IN BIG BROTHERS COMPUTAH IT WOOKS WIKE A ALIEN ! !!!!
Brother yelling: IT'S A BOOMER FROM L4D2 !

Child: What's a boomeh?!
by PedoBearrapesagain! April 16, 2010

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