Alright, I promise I'm not being condescending, I just don't wanna miss anything
Weed comes in buds. You've gotta break it apart before you can smoke it. A lot of people use a grinder to make this easier. When you are completely out of weed and really need a hit, you will scrape all of the parts of your grinder to get any weed you can from it to smoke
My friend, do yourself a favor and invest in a proper grinder. You can find pocket grinders with a kief catch for like $15. That catch will be your friend during the hard times. Let it build until you need it, and never clean that shit unless it is into your apparatus of choice.
ETA: Clean the grinder teeth, not the catch. Just knock it into the catch with a toothbrush before you do. Sometimes you can scrape some extra goodness up, but it sucks using a gummed grinder. Should be able to grind in one smooth motion, not too much resistance.
You are underestimating how good a cheap coffee grinder is. 10 seconds to do what a manual grinder takes minutes to do, costs the same despite being powered, and it can do half an Oz at a time, more if I feel like being careful. One day it'll be too gummed up for the motor, and then I'll go spend another 15 AUD for another one, unless it's gone up in the years I expect it to last.