interjection
crikey
KRY-kee/ˈkraɪki/
Expresses surprise or amazement.
Crikey, those slices of toast are flying right out of the toaster!

Etymology
Christ was used as a strong exclamation of surprise or dismay. Crikey probably arose as a substitute for that name, retaining its expressive use.
In context
by george by jim and by crikey this is a coincidence