Definition

An exaggerated exclamation pronounced with a Lebanese accent (heavy on the 'h'), used to express wonder or amazement at something impressive like a tricked-out car or attractive person. It's the verbal equivalent of a full-body double-take.

Example Usage

H'omg, check out that vintage Cadillac with the custom paint job rolling down the street!

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=h%27omg&defid=1969189)