Wiktionary
oh my gosh
alt. (context idiomatic chiefly US euphemistic English) oh my God! interj. (context idiomatic chiefly US euphemistic English) oh my God!
Wikipedia
Oh My Gosh
"Oh My Gosh" is a song by British electronic music duo Basement Jaxx. It was released in 2005 as the lead single from the band's greatest hits album, The Singles. Vula Malinga and rapper Skillah are two vocals contributor in the song.
The song archived moderate success when it peaked at number 8 in the UK Singles Chart and was also nominated for the Popjustice £20 Music Prize.
Usage examples of "oh my gosh".
And Will, below, gazing up, eyes wet, mouth wide, thought, Oh my gosh, why didn't I see it before?