Someone who prefers the act of sex more with an animal than another human being. Many are dirty, sick minded people and tend to leech onto society. The usual method of a Beastanist is to rub peanut butter on their genitalia and let an animal(usually a dog) to remove said peanut butter, resulting in a forced attempt of oral sex.
"Hey John, did you have hot sex with that chick you went out with last night?"
"No Chad, Im a Beastanist. I have no sexual desire for woman. Geez man, get that shit right."
Twisting the strangle grip Won't give no mercy
Feeling those tendons rip Torn up and mean
Blastmaster racks the ground
Bent on survival
Full throttle hammers down
A deadly scream
Those who live for the sole purpose of doing things society has deemed vile. If you thoroughly enjoy partaking in activities that most humans would consider bad or a sin.
Those blastfamites should all be shot! I am so sick of waking up with my pants down and a loaded condom hanging out of my anus.