Oh My Carlisle

Referring to the almost godlike compassion and restraint that the character Carlisle Cullen exhibits in the Twilight series by Stephenie Meyer.
Edward: Bella, just so you know... I payed Alice off to kidnap you this weekend so you don't get into any trouble!
Bella: OMC Edward, please say you're kidding!
by EpiceEmilie December 8, 2007
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Stands for "old man cock"

Sometimes used to disguise actual meaning when the company around you would take offense to you saying "old man cock."

As in, you can't interact with a webcam (ie. on Chatroulette) without some old man cock popping up on the screen once in a while.
I like to start my day off with a bit of OMC.

You know who has the best OMC? Your dad.
by KCohen April 24, 2010
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Oh My COD
for Call of duty players it is a replacement for OMG
~"I am gonna go play some MW2"
-"OMC INVITE ME NOWW"
by ozbodozzy April 5, 2010
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Oh My Cthulhu - a replacement for "Oh My God" (aka "omg") for those who prefer one (for whatever reason, including you're not religious or you're too religious to feel comfy using "god"). OMC evokes the great chaotic deity from Lovecraftian lore. Often used humorously.

Additional exclamation replacements include:
"Cthulhu's spawn!" instead of: "Jesus Christ!"
"Praise the Chaotic One" instead of: "Praise the Lord"
anyway you'd use omg
"OMC, what was that sound?"
by CuteyPatootey April 3, 2015
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Basically a replacement for OMG, but instead of god at the end I thought a more iconic figure:Charizard.
The meaning is can range from surprise to 'that's just awesome'.
Everybody I just won the lottery, OMC!
OMC, that guy just jumped off a bridge!
by HippoPenguin October 4, 2010
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O.M.C=Over mature child
Used to poke fun at someone who has a mature face but likes things normally associated with children or acts childishly.
Ben: Glenn, stop being so lame and childish, stop telling me about your adventures about you and your power ranger figurines, for god's sake, you are already 21.

Glenn: Mind your own business.

Ben:Whatever, how OMC can you get?
by Spentaz September 4, 2009
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