from this blog post it seems, that the ‘meh’ key is inspired by the ‘Hyper’ key. Both being Aliases for hard to reach key-combinations.

I think the reason they don’t have a Wikipedia article (yet), is because they are aliases for combinations rather than “real” keys.

Meh seems to be the combination of <Alt+Ctrl+Shift>.

https://ergodox-ez.com/our-open-source-firmware

thanks :)

thanks - I’ll check when I get home :)

You’re probably/hopefully right about it being safe :)