A woman that is so striking you're dumbfounded in her presence. So fly that you are stupified.
The girl in my Bio class is stupid fly
by Dylan December 22, 2004
Damn bitch u stupid fly, let me pull up to your bumper and smack that monkey
by Putle August 22, 2003
A not very intelligent insect, capable of flying. Not often used by gangsters, (gangsta's).
What a stupid fly, it flew straight into the window!
by steffffff March 08, 2004