Top definition
(verb) (1)To insert the male reproductive organ into the female reproductive system.
(2) To fill the female reproductive cavity with the juices from the loins of the male reproductive organ.
Guy 1: How was your date last night?
Guy 2: It was fine.
Guy 1: Did you fill box?
Guy 2: Yes I stuck my penis insider her vagina.
by BSU Beaver February 05, 2009
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