If I were a dj

Not all enzymes break things down (for instance, any isomerase). Also, all enzymes I am aware of are physically able to catalyze their reverse reaction, though some cannot do it under normal physiological conditions. So the ones that do break things down in one location of your body are often isoenzymes that build them up in another location. But people who listen to DJs are not likely to know that, so give it a shot, I guess.

I thought it meant "adj" as in "adjective"

been a while since i laughed out loud at a post