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Boe Shoué (pronounced BO-SHWEE):

A French term coined in the 17th Century by King Henry IV (King of France and Navarre from 1589 to 1610). The term Boe Shoué (often acronymed "BS") literally meant "rubbish" or "crap". It was commonly used to express ones disbelief in another individuals opinion and/or tale, suggesting a falsity in regards to the given account.

For example "Yesterday Harold told me that the English were planning to attack the Irish at the town of Kinsale, I called Boe Shoué on that!"

Despite popular belief, the acronym "BS" was not derived from the phrase "Bull S***" in the 19th Century but actually from the earlier term "Boe Shoué" founded in France.
"Yesterday Harold told me that the English were planning to attack the Irish at the town of Kinsale, I called Boe Shoué on that!"

"My friend John told me that his father bought him a Ferrari for his 18th birthday. I told him that he was talking BS!"

"Apparantly Taylor Lautner put on 30 pounds of muscle in a year naturally. Boe Shoué!"
by 13loodHound May 29, 2013