Billy is a very silly guy, billys never get a girlfriend and probably never will, most of the billys around the world have been diagnosed with either autism or dementure
Billy has autism.
by Mentaipotato March 22, 2019

by BakedBeans2005 September 25, 2019

What the fuck is a Billy?
by Billylovesfordandnuts November 21, 2019

A really smart guy that gets all As. Everybody at his school likes him, even all the teachers. All the girls want to pose with him, all the boys want to be his friend. He is also really good at basketball, and is the reason why the team wins all the time. If you wonder who the most popular kid in school is, he is the answer! No one is as amazing and popular as him.
Sydney: Uggh, I’m struggling with my math homework! What should I do?
Hannah: Oh, go ask Billie, he is really smart and will help you
Lily: Oh yeah, I forgot, Billie is the best and is really smart. Thank you!
After talking with him:
Lily: Wow, thanks to Billie, I now understand calculus so much better!
Hannah: Oh, go ask Billie, he is really smart and will help you
Lily: Oh yeah, I forgot, Billie is the best and is really smart. Thank you!
After talking with him:
Lily: Wow, thanks to Billie, I now understand calculus so much better!
by Billythegoat24593629 July 17, 2019

Billy is a small midget. He gets very offended for no reason.Has a girlfriend who is really pretty and popular although he is not.
by minecraft21APINYAILOVEHRVY December 5, 2018

a complete fucking idiot. someone who has no idea what they're talking about, and is a serial compulsive liar. Usually that guy that follows every one else around and nobody really knows why he's there.
by Niggii August 19, 2011

a sick freak who tends to claim his toilet overflowed, but really he is a psycho who pisses and shits on his own floor. He will tend to live in these conditions for a semester or two of college. There may also be notorious trash strewn throughout his room along with bits of chewing tobacco.
by woofwoof543 April 10, 2011
