Swampster

(noun) 1) any illegal alien, 2) an immigrant that refuses to assimilate with local customs and speaks with an accent even after being a national long enough that the accent requires effort, 3) a new recruit from hell possessing a human, or the human who is possessed by said swampster, 4) a person lacking religion, 5) a scientist, 6) worshippers of aliens

(adj) 1) any act preceded by ulterior motives, 2) Godless scientology nonsense

For example:
"see that motha fugger right there?"
"freak'in swampster"

A swampster is a hipster girl who's choochie smells like dirty swamp water.