When you date a girl, but you are ashamed to tell your friends about her because she is fat or ugly or something.
ME: "Hey, I really like you, will you date me?"
HER: "Of course!"
ME: "Great, but hey, uhm, could you be my Secret Girlfriend?
HER: Secret Girlfriend?
ME: At least til you lose some weight."
HER: "Of course!"
ME: "Great, but hey, uhm, could you be my Secret Girlfriend?
HER: Secret Girlfriend?
ME: At least til you lose some weight."
by Erik with a KKKKKKK September 20, 2009
The girl who is rely your gf and not anyone else no matter what and cant not be changed no matter what
by acdc117 April 16, 2010