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1 definition by Unsinkable Grace

 
1.
omc
"Oh My Cas"

Play on "Oh my God". Fans of the hit CW TV show, Supernatural, have come up with this term after the Season 6 Finale when a character (Castiel) proclaims himself as God.
Girl1: Did you see that Tumblr post?
Girl2: OMC, it was gorgeous.
by Unsinkable Grace November 15, 2011
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