Top Definition
F*@# Billy' sister in Butt
Martin: "Hey Billy you know your hot sister will I'm goin to FBSIB her."
Billy:"Martin im goin to kick your ass (as billys face gets all read)"
Martin"FBSIB, you jabroni"
by COLOSSUS April 01, 2005

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.