Bog-Oranges
The Slang Dictionary Etymological Historical and Anecdotal · 1913 · p. 6
potatoes. A phrase perhaps derived from the term “Irish fruit,” which, by some strange peculiarity has been applied to potatoes; for even the most ignorant Cockney could hardly believe that potatoes grow in a bog. As, however, the majority of the lower cla es of London do believe that potatoes were indigenous to, and were first brought from the soil of Ireland, which is also in some parts supposed to be capable of growing nothing else, they may even believe that potatoes are actually BOG-ORANGES .
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