Abbreviation for "Oh my fucks!". Particularly used to replace "Oh my gosh" from "oh my god" when trying not to use the word "god", or having "gosh" mistaken for it. Can be used by either fundies or atheists, either not using "god" because it's a sin to use it in vain, or merely because you don't believe in theism and don't want to support it.
I'LL HAVE A SKINNY, SOYA, EXTRA HOT, NO FOAM, NO CHOCOLATE, ONE SHOT, HALF FILLED, ONE AND A HALF SUGAR CAPPULATTACHINO IN A TAKE AWAY CUP WITH NO LID.
"That's more of what we do, It means OTHER MUSIC FOR UPLIFTING
GORMANDIZERS." And what is a gormandizer? It's a voracious eater of,
in this case, MUSIC."
"Omguh" is the vocal pronunciation of the internet acronym "OMG," which stands for Oh My God. It is often used sarcastically. The vocal phrase was first popularized by the eponymous host of the cable television program "Unscrewed with Martin Sargent," which aired on the now-defunct TechTV from 2003-2004.
(While viewing a reality television show featuring D-list celebrities performing obnoxious stunts for publicity): "Omguh! Did you SEE what Cory Feldman just did?"