The equivalent of omigod or oh my god or oh my gosh usually said by ditzy girls that just slur the three words. Hence, omigosh, instead of oh my gosh.

Becca: Omigosh, Jen! Brad just waved at me!
Jen: No way! Omigosh, did you wave back?
Becca: Omigosh, yes!

omigosh by sprinkes_in_my_frosting February 16, 2008

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OMFGASM

an orgasm caused by an excessive amount of surprise or excitement

When Katie saw the Taylor Lautner in the New Moon trailer, she was so excited she had an omfgasm.

John was watching The Empire Strikes Back and when Darth Vader said he was Luke Skywalker's father, John must've had an omfgasm he was so shocked.

OMFGASM by captainsuperawesome August 23, 2009

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Omgosh

Similar to OMG (Oh my god!), but ending with a fashionable "osh" to imply "Oh my gosh!", which isn't "Oh my god!", which is important, if importance was the issue. Which it's not.

It's just short for "Oh my gosh!".

Omgosh that beast is hawt.

Omgosh by Serra September 17, 2004

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omfgstfu

omfgstfu stands for: Oh my f*cking god, shut the f*ck up.

Used when you are really angry at someone and just wish they would shut up.

Girl 1: So like, she's like suuuch a bitch like wtf. She's soo not cool and stuff.
Girl 2: omfgstfu. she's my friend.

omfgstfu by athy16athena February 8, 2009

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