#12's definitions
A girl that looks fine from far away, but when you actually get close to her, you can see that she is busted.
Ex. 
Me: Damn, Gabe, why where you hitting on that ugly chick? What happened to the NUB rule?
Gabe: She looked okay at first...
Me: That's a mirage...
Me: Damn, Gabe, why where you hitting on that ugly chick? What happened to the NUB rule?
Gabe: She looked okay at first...
Me: That's a mirage...
by #12 October 26, 2005
 Get the miragemug.
Get the miragemug.