What does the word ballsy/or bolsey mean?

Question

What does the word ballsy/or bolsey mean?

Answer 1

It means to be strong or brave.

The saying itself relates to the size of someone's testicles.  As though suggesting they have big balls means they are going to be more manly and thus more brave and strong.

Answer 2

I think it means brave. 'That was a ballsy move' for example

Answer 3

To be gutsy or to have guts to do something....