I don't know about all that - A way to tell someone you're not buying their whole mess and

A way to tell someone you're not buying their whole mess and you're probably going to laugh at them later.

'I don't know about all that,' said the friend who was already planning to make fun of the plan.

'I don't know about all that,' said the mom who had already seen this movie 10 times.

'I don't know about all that,' said the parrot who just said 'hello' in three different languages.