Well, unlike the previous poster, I wouldn't presume to tell you what your boss meant, bevman. I have a vague recollection of hearing the expression "out the gump stump" meaning the same thing: in excess. And that was in Alabama. Kinda like up or out the yin(g)-yang (now where did that expression come from?).

This doesn't answer your question, but I wanted to let you know I've heard something similar.