You jest, but I'm not sure that is a bad idea. bash/zsh seem happy with emojis as function/alias names, and I can input emojis easy enough. In fact some emojis are easier to type in my chosen layout than the string necessary to disambiguate completion for some commands.

Thanks for the idea, and I'll redirect co-worker scorn at U+1F984 for `git push` towards you ;)

Edit to add: Using emoji for commands/arguments is actually quite workable with global aliases or custom zle widgets in zsh, and moderately workable by using $INPUTRC to specify text replacements for readline if you're a bash user.