By "powder" I meant drink-mix type powder; you know, you put them in a mixer and shake it as spastically as you can, but it still doesn't full desove, so you start carrying a blender in your gym bag, and then you drink it and there is STILL powdery stuff left around the edges of the cup, and it never, ever, actually tastes like whatever flavor it says on the label, so you shotgun it and then reach for some mints, and all the while, you're wondering if that scoop you took from the jug actually contained the correct balance of the various components, and the whole thing just makes you want to talk without ever using a period? Those things?

I still use meal replacement shakes when I have to, but if I can avoid powder mixes, I prefer to do so.