I was wondering what does the expression "walk one's feet into the ground" mean.
Someone wrote me:
- Yesterday, on my way to work I walked my feet into the ground.
Does it mean: "I walked so long way that I got tired in a manner that I could not walk anymore" in informal English?
Also, I need to know if it is used in AnE too? And finally, I need to know what is its alternative in written English?
PS. I looked it up on the internet, but I could not find any reliable source defining the term.