Meaning of mein Gott in English:
mein Gott
(also mein Got)
Pronunciation /ˌmʌɪn ˈɡɒt/
exclamation
Frequently in representations of German speech: = "my God".
Origin
Late 18th century; earliest use found in John Wolcot (d. 1819), poet and satirist. From German mein Gott from mein + Gott.