Linux Mint

As the title says, I just started with linux mint and am falling in love with bash scripts 😍 Actually I'm not sure if it's considered a script, but I want to delete the last 2 files in all subfolders in a folder. So far I've (after great effort) got the terminal to list the files, but I want to delete them. Here is how I get them listed:

for f in *; do ls $f | tail -n 2; done

All their names come satisfyingly up in the terminal. Now what? I tried adding | xargs rm but that didn't delete them. I also tried something with find command but that didn't work either. Some folders have 3 items, so I want to delete #2 and 3. Some folders have 15 items so I want to delete #14 and 15. Folders are arranged by name, so it's always the last 2 that I want to delete.

It's frustrating to be sooooo clooooose, but also very fun. Any help is appreciated!