n. A portmanteau of 'Cantillon', a well known brewer of highly acidic 'lambic' beers, and Pantaloons, wide breeches common in 17th Century England.
Excessive consumption of lambic beers is known to adversely affect the digestive system, often causing unintentional venting of highly liquescent excrement. One who has suffered such an outburst is said to have 'Cantiloons'.
"Man, I drank 10 bottles of Lambic last night. I had heinous Cantilloons."