Really crazy, in a loopy, delusional sense. May derive from the sense of 'as crazy as someone who believes in aliens' i.e. to the extent of wearing tinfoil hats, or, less likely, someone who thinks as differently from a normal person as someone from another planet would.
by stellar760 October 8, 2013

The last time you heard about a team called the Aliens was in a Super Nintendo game back in the early 90s.
by Solid Mantis October 19, 2020

by that one super smart guy December 1, 2022

Instead of saying god say four aliens, because according to atheists thats how we, humans, were created, or one theory anyway
by astounding February 14, 2003

An invasion of European descendants with Pox diseases into America, decimating the Native Americans Indigenous groups, and taking over their land by committing genocide bringing their disease in purpose.
Karen - Ken tells you: Go back to where you came from.
Your comeback can be: You go back where YOU came from you Alien-Specie Pox.
Your comeback can be: You go back where YOU came from you Alien-Specie Pox.
by fckUkaren November 7, 2021

the fucking badest assest poi spinning style on earth. With geometric moves that will blow your mind. Think a flaming 3D spirograph.
by High Priestess 22 February 5, 2010
