[{"role": "user", "content": "I'm trying to understand some idiomatic expressions and I was wondering, how would you translate the phrase 'He has a big mouth' into Italian, so I can better convey the same meaning?"}, {"role": "assistant", "content": "The phrase 'He has a big mouth' is an idiomatic expression that means someone talks too much or gossips a lot. The correct translation into Italian would be 'Lei ha una bocca grande.' However, please note that 'Lei' is a formal way to say 'you' and is also used as a polite form for 'he' or'she'. If you want to specifically say 'he', you would use 'Lui' and the sentence would be 'Lui ha una bocca grande.'"}]