"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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acronym standing for 'oh my crap'
"did you do that assignment for Bui yet?"
"OMC I FORGOT"
by Daniel November 26, 2004
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On my cool shii 😎🤏🏼
Guy: “how you been?”

Other guy: “omcs mane
by sadly.imbri January 03, 2020
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OTARA MILLIONIARS CLUB
An R and B group that started in otara, Auckland,New Zealand.Then moved on to the States.Paul Fueamana(bad spelling?)and co.His brother(Phil) just died Circa March 2005 rip.Best known for 'How Bizarre'.
by Thrushbeard March 09, 2005
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Acronym for old married couple. Used to describe a young-ish (16-35 year old) couple that has a tendency to behave as if they've been married for 40 years.
Frances: We're going to the movies tonight.. do you wanna come? And what are Claire and Marc doing?
Katherine: I can come. I think they are staying home having quiet time.
Frances: My god, they are so OMC.
by Slly September 11, 2005
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look at him, he's running this store by his own without any need for help by others , he's an omc.
by phlegmat September 25, 2005
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