Top Definition
The relationship between Dean Winchester, Sam Winchester, Castiel: characters in the show Supernatural. The first part,"wincest" is a play on words that combine incest and the two brothers, Dean and Sam's last names. This is simply added onto Castiel's name, creating the term "Wincestiel".
Dean+Sam+Cas= Wincestiel
by Violet Westbrook July 02, 2013
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