An exclamation of extreme shock or surprise... but only valid when the word God is capitalized.
"Oh my God Doug... I can't believe you didn't capitalize the word God"!
by Maxo888 February 22, 2014
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oh my god, my ass is bleeding
oh my god, that's in my butt
by 315 & T-Dog! February 28, 2003
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exclamation used by Justin Capps to exclaim when something obsurd or outrageous such as someone having whiskey dick it is common to use the phrase "Oh my God" in a deep voice while putting your right hand with a hook to your mouth as if smoking a cigar

Derived from the movie "Tommy Boy"
"Parker couldn't get it up? 'Oh my god'"
by C-red February 17, 2004
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1) This is Ronny J’s signature for the beats that he produces for songs by rappers like XXXTentacion (God rest his soul), Lil Pump, Famous Dex, 6ix9ine, MGK, Comethazine and others. “Oh my God Ronny” is his personal signature that lets people know that he produced the song and helped to advertise it himself

2) Or you can use it in replacement of Oh my God just to add a hint of humour in the phrase.
1) *Listens to an MGK Song*
"Oh my God Ronnyyyy"
Me: What the fuck

2) *Is playing basketball*
*Friend gets a nice three pointer in*
Me: "Oh my God... RONNIEEEEEEEEEEE!!!"
by InstaCream February 26, 2019
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"Oh My God Jihyo" is an expression used commonly by kpop fanatics (specifically Twice) that uses the expression "Oh My God" but in their fandom which in this expression being the KPop group Twice in this case being their leader Park Jihyo. There are also other expressions like this but in different groups i.e. BTS (Bangtan Sonyeondan 방탄소년단) being "Oh My Namjesus" from their leader Kim Namjoon and BlackPink (브라크핀크) being "Oh My Jisoos" from their lead vocalist Kim Jisoo.
"Oh My God Jihyo!!! Twice looks stunning in their new comeback"
by 애쉬튼 BuddhaTzu April 16, 2020
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Spectators who rush to the scene of a fire, car wreck or other emergency and hamper or even block rescue vehicles.
Oh great...the 'Oh my God!' squad has the road blocked and I can't get Engine 1 close to the house on fire.
by mikegt May 23, 2010
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Hey, I’m just quoting Kylie Jenner. . . .
KRIS: Kylie Jenner, please report to the foyer; I have a surprise for you . . . !
KYLIE: Oh my God, is that a chicken?

OH MY GOD IS THAT A CHICKEN
by The Nightmare Hour April 19, 2018
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