When a person has no friends and therefore stays at home on their own. It derives from the term, "billy no mates".
by Sam Hornbrook September 17, 2008
Get the billyingmug. A tall, strong, smart, great-looking football player that goes a little overboard when he likes someone. The girl he likes never likes him back. Usually gets really upset when that happens because when something doesn't go his way he can always take matters into his own hands and fix it. With girls, its as simple as they don't like him and he has to deal with it.
Britt: Hey look. Is that Billy over there?
Dani: Yeah, I think so.
Britt: You two should go out sometime, you look like you'd be a good couple and I heard he really likes you.
Dani: I don't think so. I just want to be friends.
Dani: Yeah, I think so.
Britt: You two should go out sometime, you look like you'd be a good couple and I heard he really likes you.
Dani: I don't think so. I just want to be friends.
by Mr. * May 9, 2011
Get the Billymug. A anal pounder that licks the windows of the office while staring at forest fires. Has been know to be a switch hitter on the sexual perspective
that person is such a Billy
by forester boy December 19, 2011
Get the Billymug. A Billy is a lost boy who #cantstopwontstop. Similar in stature to a baby goat, these boys flail hard and don't like white bitches.
by Ve12itas June 26, 2017
Get the Billymug. Person A: did you see ____'s outfit, she looks like a nun, her boyfriend won't even let her show her ankles
Person B: god I know, he's such a billy
Person B: god I know, he's such a billy
by LemonyLovecraft December 5, 2018
Get the Billymug. A cat girl who is really cute and beautiful, she is very famous and everyone loves her. she has sharp teeth and a adorable personality, she is a cute little beast.
by Unexceptional Noob March 5, 2022
Get the Billimug. Billy is an absolute asshole. He is the worst friend that you could ever have. Do not go near him, talk to him nor even look at him. He is ugly af. Billy’s have no friends and they take the piss out of people when they’ve done something. They are untrusted. They are two-faced and will soon stab you in the back.
by Yo. July 22, 2019
Get the Billymug.