According to Etymonline:
(It is also used in excitement.)
blimey
by 1889, probably a corruption of (God) blind me! First attested in a slang dictionary which defines it as "an apparently meaningless, abusive term."
Etymonline includes the date of origin as 1889 but doesn't cite the first usage. What slang dictionary it is referring to? Is it possible to find more details and the first usage of the word?
Best Answer
The OED entry goes for either blind me or blame me.
And for Gorblimey