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1.
1. an expresion of suprise.
2. a response to a suprising situation/coment/picture.
3. a conversation scapegoat.
4. a sarcastic reponse.
5. see oh dear
6. see jonathan costa
7. an old person term.
Oh my!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
by ham_sandwich August 10, 2003
 
2.
Exclamation of surprise
'Oh my...ankle'
by DeeDub November 04, 2003
 
3.
A meme-level expression used in response to anything sexually pleasing/enticing, whether it is an image, video, song, or written content.

It is most commonly used as a simple image macro featuring George Takei; the meme itself probably originated from instances of Takei saying "Oh, my!" in response to sexy stuff, especially on the Howard Stern show.
Howard Stern: Hey Jonah, let's see that gigantic penis of yours.
Jonah Falcon: K. *whips out 13-incher.*
George Takei: Oh my! :]
by Dr. Dick Delaware April 17, 2012
 
4.
1. an expression of surprise
2. response to shocking situation
3.something a boyfriend says to his bestfriend to confuse their girlfriends.
Matt: OH MY!
Josh: OH MY OH MY!
Charly and Iovana: HUH?

Michael: I'm Pregnant!
Miranda: OH MY!
by chuckles22701 November 10, 2010
 
5.
relating or pertaining to the ohm, a unit of measurement for electical resistance
did you see that fuxed up coax? it was ohmy like a mother fucker
by ael April 23, 2003
 
6.
A term used in response to sexual behaviors, or suggestion. The person who says the term does it with much feeling, to help the person who spoke to them, to him/her to leave them alone.
John: Yeah, I just can't wait to eat you out !
Carrie: Oh My!
by P3DR0 May 08, 2007
 
7.
when you are going to drink you call it oh my
hey are we gonna oh my at jons house tonight
by taylor June 15, 2003