Top definition
When a person (either sex) is a sweet little angel, goody two shoes, whole hearted sweetheart etc, when at home/ around the community. Then proceeds to be a party hungry, attention seeking, sloppy, whore when the night falls/ leaves the country.
Friend 1 - " So apparently my Jesus loving, church camp counsellor, never been drunk in her life sister is living it up half way across the world getting wasted and getting pictures with strange dudes. Thanks for the update facebook."
Friend 2 - " Nice. Your sisters a sewer donkey."
Friend 1 - "Dick."

Randy loved going to all the bible college parties because 8/10 times he would take home a swamp donkey.
by Wayne Moonwalker May 09, 2014
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