Innit/ˈɪnɪt/ Definition 1 of 3Pro Tip 1/3Seeking Agreement Use 'innit' to make sure others agree with your statement or observation. This movie's great, innit? Pro Tip 2/3Informal Speech 'Innit' is very informal and generally not used in formal conversations or writing. You wouldn't say 'innit' in a job interview. Pro Tip 3/3British English You'll primarily hear 'innit' in the UK, so it can sound out of place elsewhere. Visitors to the UK are often surprised by the use of 'innit'.