Bloke, which means a man or fellow is first recorded in England in the 1820s. It first appeared in a glossary by the late 1830s, spelled "bloak" and defined as "a gentleman.
It was even used in America at one time.Mark Twain used it: "I made up my mind to be a square bloke," he wrote in Life on the Mississippi. It is now rare in America and is usually regarded as a typical Briticism.
The actual origin of bloke is uncertain. It is sometimes attributed to Shelta, a private language, derived in part from Irish Gaelic, spoken by the travelling people in Ireland.