a writer with a 'tin ear' for dialogue [=who writes dialogue that does not sound real]
My wife is a talented musician, but I have a 'tin ear'.
a 'tin' of biscuits/tobacco
(..) Right. Well done. Three minutes. Get what you need. Good evening, boss. No way we all get through this. If even one tin soldier is left standing, we've lost. - It's gonna be blood on the floor. - I got no plans tomorrow night. I get first crack at the big guy. Iron Man's the one he's waiting for. (..)2015 Avengers: Age of Ultron