Someone who has sex with an animal or animals.
Tom: Get your penis out of my horse, you bestialist!

Julia: Ewwwwwww! Animals can't consent!
by Jacob Wake-up May 07, 2009
Top Definition
No such word exists in the Dictionary but it is related to zoophilia
A person who has sex with animals is a bestialist
by gork July 03, 2004
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