Really my favorite word is: Antidisestablishmentarian. If you really understand prefixes and suffixes it is really easy to understand. Definition: originally, opposition to the disestablishment of the Church of England, now opposition to the belief that there should no longer be an official church in a country Example: When people are asked for the longest word they know, they often say antidisestablishmentarianism. per Websters!

Both sound of the word and the sound of a person trying to clear it from their throat by coughing up the actual substance, make my skin crawl.