Someone who is hotter than hot. One main rule to be quiche you have to have a three finger gap between your thighs a.k.a the 'box gap'. An example of someone super quiche is J'amie private school girl. God she is fucking quiche!
Maddie: J'amie you look so fucking quiche in that dress!
J'amie: Omg I know! Like, I look more quiche than usual.