NimSquawk?

from the very obvious to the whimsical:

NimmoPhon

Nimference

Nimbeaumôt [sic]

Nimditer

Echonim

Edit:

how I missed Nimsical, I don't know..

Nimminent

I am pushing it rather, so I'll quit while I'm behind... Sorry, but I have to try suggesting PhonoNim, after [0] thinking of phone typos in text conversations.

[0] https://www.urbandictionary.com/define.php?term=phononym