I don't remember exactly what happened, but the millionaire man said, blimy, couldn't he run after his hat wot the wind blown off?
"blimy," he said at length, "you look like the sort o' bloke she'd like," and with that he grinned again.
blimy if I don't believe 'e's taking 'ome 'is washing up his back.
blimy, Guv, you won't forget a old cove as 'ud shed 'is best blood for ye?
Number One was Jimmy Archer, who had tried to steal the "blimy teapot."
Then, turning with a sudden access of fury, "I'll knock yer face off, blimy!"
by 1889, probably a corruption of (God) blind me! First attested in a slang dictionary which defines it as "an apparently meaningless, abusive term."
An expression of surprise or excitement: Blimey! What a ride!
[1889; contraction of (God) blind me]