"Ouch" is often used as an exclamation to indicate that one has experienced a pain, either directly or as an expression of empathic experience. Its root lies in the Hebrew word "Yowza", which means, literally, "ouch". In the 2nd century BC, the Greeks borrowed this word and turned it into a funny symbol that looks like a finger getting smashed by a hammer (which has since been lost from the lexicon and therefore does not appear in any unicode dictionaries). Prior to the development of the word "ouch", the Babylonians expressed direct experiences of pain with a complex series of movements that are believed to have been borrowed from the mating dance of the Blue Boobies. Not having yet developed mirror neurons, the Babylonians did not develop any means of communicating empathic experiences of others' pain, so they just laughed at each other a lot.