The phrase used to describe a female who agrees to go out on a date with a male, the female has no interest in the male, but agress to go out on the date for a free meal. This can be repeated as necessary until the oblivious male figures it out or is usually ditched immediately. Note: This is not to be confused with a prostitute, there is usually no exchange of sexual relations.
Female A: Eww that ugly guy just asked for you number and you gave it to him?
Female B: Yeah duh, it's going to be a dinner and ditched
Female A: Hahah what a loser