What is stundere?

State of being "still under"

I think that company is stunder development.

stundere - meme gif

Stuttering so bad you mispronounce "stutter" and you say "stunder".

Collin: Bro u gotta stop stuttering, I can't even understand half the shit u say
Eddie: I-I don't stunder

xylo is such a stundere