a person who believes that a particular species is superior to another.
"I hate bears" is a example of being a beastist
by Mob Kawn September 3, 2015
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Someone that performs in bestiality, and has sex with animals
"Yo Chad"
"What?"
"Did you hear about Sarah?"
"What happened?"
"Dude she's a beastist, she had sex with her dog"
"Damn bro...i'd still fuck her though"
by DrFunTimes February 9, 2020
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