college wife
A girl who is "married" to a college frat. She does many requests given from him (usually sexual) in return for and endless supply of free alcohol at parties. There are many rules that go along. One of which is that a frat can have as many "wives" as he pleases, however a girl cannot have a college husband. Very sexist and implies the ideals of patriarchy.
I made a booty call to my second college wife last night at 3AM. I guess she values free alcohol over sleep.