Troll killer, one who thwarts or denies the trolling attempts of new users on message boards, in Irc channels, or anywhere else trolls are likely to congregate. See "The Three Billy Goats Gruff."
I'm glad we have Jeff in the channel. He's the best billygoat we have.
When a man is performing the sexual act of "tittyfucking" by putting his penis inbetween her breasts and then thrusting. When the man is about to ejaculate he makes sure that it he shoots his load onto the womans chin. Which will give her a white goatee like she is a billygoat
Jan loved it when i gave her the BillyGoat because she is an avid animal lover
A person overzealous about taking out trolls, to the point that nearly no one can discuss a subject with varying points of view because the least criticism, controversial statement, or personal opinion is viewed as trolling.
I was banned from an ethics discussion board because a billygoat who resented my views reported me to an admin.