anyone mind sharing the... other definition... I know it, I just want to make sure you know it too

... yes....

can i watch?

Having bought 3 whole pairs of boots in my life, and one of them actually expensive, I have no idea what this means.

Based on the context of fluffy tops, I'm guessing snow boots, and impregnating in this context is impregnating the boot material with a waterproofing agent of some kind.

My first job out of college my boss told me to machine something out of “teflon impregnated delrin”, which is like slippery machinable plastic. Just stared at him for a while to see if he was serious.

"Of course I want miniature versions on top of the regular ones"