Possibly the most irritating piece of chatroom vernacular in existence. Often used by teenage girls in chatroom who, for some reason, punctuate their sentences with "Like", "Totally", "soooooooo" and "Lolz."

Correct Response - "Speak proper, or STFU, N00B!"
"OMG WTF! u nevaz did dat, like, dats like, fkin gay! if i did dat id be like, wowz!!!!" - Actual AOL chat quote.
by KHD August 27, 2003
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Usually said in chat rooms or online forums etc. Short form of "OH MY GOD!!!"
"OMG"
"WTF?"
"LOL"
"WTF?"
"ROFL!"
etc
by Kristjan May 14, 2005
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Oversized Male Genitalia (OMG): a genetic birth defect that grows the penis abnormally large or to absurdly large proportions.
Every year, thousands of men are diagnosed with OMG. Sadly, most are banished to the fringes of society, victims of their own freakish length and girth.
by Suffers in silence May 27, 2012
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An acronym of the Phrase Oh my God, originated from online chat, and is commonly used in online games and web chat.
Chat: OMG she is so hot!

Gaming: Liek OMG i pwned you!
by Terry Baldock April 4, 2005
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Acronym. Generally "Oh my God!" For some people that don't like taking the Lord's name in vain, "Oh my gosh!" For Googlists, "Oh my Google!"
OMG there's a lot of pages on the internet!
by mikeejimbo July 13, 2006
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Often similar to OMG, it is used for those of different religions that tend to have more than one god, (Oh My Gods). Of course, some also add the 's' at the end to try to make it appear more unique, such as done with Lolz.
"OMGs! That's awful!"
"OMGs! So cool!"
"OMGs! Lolz!"
by Ukiuki July 2, 2005
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