Humor is reason gone mad.
"OMGAH," which contains the ever-popular OMG acronym, is a kicky, catchy, and memorable term for a fun website featuring humor, popular culture, fashion, books, movies -- unlimited possibilities for your company.
This could also be a product/service brand or even a company name.
"OMGah" and its variations ("OMG ah" and "OM Gah"), do not appear in the USPTO.gov data bases. There are several trademarks on "OMG," probably having very little bearing on OMGah, but if you are not certain, please consult with a TM attorney.
(Includes domain and logo.)