What is Pre-box?
1.
A shortening of the "flat-rate box", the pre-sized boxes produced for priority and express mail delivery by the U.S.P.S.
Bill: Do priority boxes come in pre-boxes?
Bre: You mean flat-rate boxes?
Bill: Yes, obviously
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Cheating on your wife or girlfriend, especially if in the process of cheating, you disappear for a few days and say you are going somepl..