As a Noun: 1. A group of words which have a different meaning when used together from the one they would have if you took the meaning of each word individually. For example, in English “I’m pulling your leg” means “I am not serious, I am joking”. English = idiom Note: 1. The signer in the video is giving an Auslan definition of the English term IDIOM. 2. There appear to be no Auslan signs associated with this term. If you know a sign for IDIOM that is used in this context by you or other Auslan users (deaf people or interpreters) please go to "Report missing sign" and supply details. Thank you.