Oh My Cher, instead of Oh My God (OMG). The phrase is popular in the gay community, whom stereotypically are obsessed with the famous singer Cher.
OMC, that is insane!
by Matthew Weyer August 9, 2005
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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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acronym standing for 'oh my crap'
"did you do that assignment for Bui yet?"
"OMC I FORGOT"
by Daniel November 27, 2004
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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 chicken.

used to express great awe or shock
by CloneWarsFan May 15, 2010
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Oh My Cron!
The exclamation of aghast fear when hearing of the new Covid-19 mutation. Combines Oh My God, Omicron, and Cronus the destructive, all-devouring Titan King of Greek Mythology.
"OMC!, another variant. Let's panic!"
by TwistedTiffany November 29, 2021
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