Seeing as I've heard a bunch of people with normally very clean mouths refer to the tea party people as teabaggers, I think you should all know something. Teabagger however apt it might be, is a very impolite word. It refers to a sex act. I'm not going to tell you what it is, but I bet if you use your imagination, you can figure it out.
Also, a message to all you sweet moms and grandmas: blow your wad does not refer to blowing one's wad of cash. Just so you know.
Interesting fact, however: the expression balls to the wall is not vulgar. Or at least its origins aren't. According to the Maven's Archive, balls to the wall, is military slang, and it refers to the ball at the top of an airplane's throttle. To put the ball to the wall was to push the throttle as far forward as it could go, kind of like the expression floor it, referring to pushing a car's gas pedal all the way to the floor.
Of course, I imagine that the double entendre was not lost on those who coined the expression.
And now you know. And knowing is half the battle.