Grand Illusion 

A female who wears a "Miracle Bra".

"So, how big were Debra's tits?"
"Don't know man, it was a Grand Illusion!"

Grand Illusion by Misfit December 18, 2003

Grand Illusions 

a dirty south mutha fucka who cant get a car workin in over a year, but can have time for a hot ass girlfriend

oh what's that bitch's name....oh yeah Grand Illusions

Grand Illusions by Bob's ure uncle January 21, 2004