What is "bandy about"

Usage examples of "bandy about".

But Tsar Peter thought about it very gravely, as if an infinite amount of money was a routine sum for him to bandy about in his budget-meetings.

The point is, your calling him your son precludes the very claim to Hermat upbringing that you bandy about.

Infinity was a mathematical concept, very easy for a bithead like Zeldo to bandy about, but not something that biologist usually had to deal with.

Is it advisable, Damia replied cautiously, to bandy about such terms?

That's not the kind of thing you bandy about with Slytherin's heir on the loose, is it?