Balls + audacity = balldacity.
I couldn't believe that he had the balldacity to say that!
Possessing both the balls and audacity to say something or do something that is considered really out of line.
You have the balldacity to blame me for the house catching on fire when you were the idiot that was smoking in bed.
I can't believe he had the balldacity to try and mansplain to her that the whole areolae is the nipple. What a dumbass!