google - Pig Latin-Suche(E?)(L?) http://www.google.com/intl/xx-piglatin/
"Pig Latin" is a game of alterations played on the English language game. To form the "Pig Latin" form of an English word the initial consonant sound is transposed to the end of the word and an "ay" is affixed (Ex.: "banana" would yield "anana-bay"). The purpose of the alteration is to both obfuscate the encoding and to indicate for the intended recipient the encoding as 'Pig Latin'. The reference to "Latin" is a deliberate misnomer, as it is simply a form of jargon, used only for its English connotations as a 'strange and foreign-sounding language'.
The origins of Pig Latin are unknown.