Another term used for saying someone has just put their balls in your mouth. Usually happens when the big boss man comes down to your office for a visit and finds something he thinks is wrong. He will pull out the ball bag musket and shoot some balls in your mouth and make you look like an idiot in front of your subordinates and peers.
Hey man you hear about what happened today when the boss came down? No what happened? Well we had a surprise visit today from the corporate office and the regional manager didn't like what he saw. So he pulled out the ball bag musket and put his balls in my mouth and made me look like a dumbass. Man that right there is some fey luck right there. I know that is going to result in a trip to Mount Olympus. Well good luck.