Top Definition
A girl with whom you had an informal relationship, never quite defining whether or not she was your girlfriend. Stands for "Former Semi Girlfriend"
I went to a few movies with this girl, and then she was like, "I'm goin' out with this other guy!" Now she is my FSGF.
by Ben Cannon May 17, 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.