I recently ran across the following highly expressive quote:
“The problem with defending the purity of the English language is that English is about as pure as a cribhouse whore. We don’t just borrow words; on occasion, English has pursued other languages down alleyways to beat them unconscious and rifle their pockets for new vocabulary.”
—James D. Nicoll
I am delighted to report that LINGUIST List has solved the question of exactly when (1990) and how it originated. A tip of the Languagehat hat to all concerned.