Abbreviation for Oh My God Happy Birthday. Implemented by overly-excited teenyboppers on social networking sites. Variations include but are not limited to OMFGHB (Oh My F***in' God Happy Birthday), HCHB (Holy Crap Happy Birthday), HSHB (Holy S*** Happy Birthday), etc.
Facebook: Today is Sarah Smith's birthday (16 years old)
Random 15-year-old Girl: OMGHB!!!
Sarah Smith: I don't speak teenybopper.
by softkitty408 September 04, 2012

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