PUL is polyurethane laminate. Its a type of waterproof stuff but it breaths. So sort of the same effect as your yukky plastic pants but much nicer for bub & you can get it in a massive range of materials. Check out Wild Child nappies, they have a laminating service where you send in your own material. So really you could get what ever you wnated as far as patterns go.

MM is Malden Mills Fleece. Again another waterproofing layer. Comes in a range of different weights. Makes nice covers & used in AIO's. - first AIO I made was of MM outter hemp internal soaker & microfleece inner. Its the black & white check one on my blog, works really well. Fast becoming one of my fav nappies.

FOE is Fold over elastic. I have used it but not that fussed with it only because I don't need it for how I made my nappies & covers. Its like a thick bit of elastic that has a crease in the middle so you can fold it over. so you end up with elastic on both sides of your material, you use it to bind the edge of something. Have a look at the Baby Behind PUL & wool covers to see what I mean.

MF could be Micro Fleece or Micro fibre. Mfleece is what yiou have as your liner or inner of a nappy to keep skin feeling dry. M Fibre is very absorbant material.

ummmmmm thats all I can think of right now.