"all over bar the shouting" means: Of an activity where the result is known, but may be subject to change, due to it not being officially finished or announced.. This is a fairly neutral word with no inherent risk attached. There is no real cause for parental concern; it is descriptive vocabulary rather than something dangerous. If your child uses it, context will usually make the meaning clear. A brief, curious question about where they heard it is generally enough to know whether to follow up.