A mutelet is somebody that does not have a personal mute in VRChat.
A mute in this case is related to game VRChat, in which some players choose to never speak and are therefor deemed "mute". This term comes from the twitch streamer sodapoppin when he obtained a personal mute follower and sidekick, and then began calling anybody without a mute, a mutelet.
(Myoo, turd) This affliction only applies to males. It occurs when one is struck in the genitalia by a T.V. remote control.
Logan was screaming bloody murder because he was accidentally mutered by CJ.
Logan: (Screaming bloody murder) AARRRRRGGGG!!!!!!
Mom: What in the world is going on in here?
CJ: (Laughing hysterically) I'm sorry, Mom. I just "mutered" Logan by accident