"A Little Bit of Cucumber" is a cockney music hall song, written by T. W. Conner for the comedian and singer Harry Champion, who first performed it in 1915. It was first published by Francis, Day & Hunter Ltd. the same year. The song is about the joys of certain types of food, which were popular at the time with the cockney working class community of East London.
The song was intended to be sung at a fast tempo, for which Champion was famous. The song relates the culinary preferences of a working-class man who enjoys eating cucumbers; he compares them to other types of food, but emphatically afirms that it is cucumber he prefers.
References
A Little Bit of Cucumber Wikipedia(Text) CC BY-SA