A very nice way of saying "Get the fuck outta here!" or "GTFO".

A celebrity free pass is an agreement between you and your significant other that if you meet said celebrity and there is an opportunity to sleep with them, your partner cannot get mad at you for doing so because you had agreed before hand that this person was your celebrity free pass. It is ideal if both of you in the relationship choose a celebrity free pass so that the playing field is even.

A question a person asks when they think a completely unknown person is intruding or being out of line. It is usually only asked because the person cannot think of anything else to say.