Gibberish language

right|thumb|The Jabberwock, as illustrated by John Tenniel, 1871 "Jabberwocky" is a nonsense poem written by Lewis Carroll about the killing of a creature named "the Jabberwock". It was included in his 1871 novel Through the Looking-Glass, the sequel to ''Alice's Adventures in Wonderland'' (1865). The book tells of Alice's adventures within the back-to-front world of the Looking-Glass world.

Simlish is a constructed language devised by game designer Will Wright for the Sims game series developed by Electronic Arts. During the development of SimCopter (1996), Wright sought to avoid real-world languages, believing that players would grow to show disdain for repetitive dialogue. For the release of The Sims, Maxis recorded hundreds of voice clips with unique cadences and emotional nuance.

Gibberish, also known as jibber-jabber or gobbledygook, is speech that is (or appears to be) nonsense: ranging across speech sounds that are not actual words, pseudowords, language games, and specialized jargon that seems nonsensical to outsiders.

text using a mixture of languages

"Prisencolinensinainciusol" (; stylized on the single cover as "PRİSENCÓLİNENSİNÁİNCIÚSOL") is a song composed by the Italian singer Adriano Celentano, and performed by Celentano and his wife Claudia Mori. It was released as a single in 1972. Both the name of the song and its lyrics are gibberish, but are intended to represent what American English sounds like to people who do not understand English. The song charted in several European countries.

Grammelot (or gromalot or galimatias) is an imitation of language used in satirical theatre, an ad hoc gibberish that uses prosody along with macaronic and onomatopoeic elements to convey emotional and other meaning, and used in association with mime and mimicry. The satirical use of such a format may date back to the 16th-century commedia dell'arte; the group of cognate terms appears to belong to the 20th century.