From Old Norse muðr, munnr, from Proto-Germanic *munþaz, from Proto-Indo-European *ment-; Doublet of mouth.
Meanings
(dialectal, obsolete) The mouth, jaw.
A common cry at Coventry on Good Friday is: One a penny, two a penny, hot cross buns, / Butter them and sugar them and put them in your muns. 1847, J O Halliwell, Dictionary of Archaic and Provincial words:
(Internet, qualifier:roleplaying games) The person who roleplays a character in a role-playing game, especially an online play-by-post one.
Wait a sec.... You mean.. this is a GAME??
And here I thought that nine tae five job my mun goes to everyday^([sic]) was a game and Norrath was my home.. 1999 November 4, Milelarau [username], “Re: Roleplaying”, in alt.games.everquest (Usenet):
Jade grabs a handful of brownies and nibbles on then,^([sic]) trying to keep her mun from reaching right to the screen to get some[…] 1997 October 29, Jade [username], “Re: Male dragon in need of mate ^_^”, in alt.fan.dragons (Usenet):
Any suggestions on how to successfully turn this into a good SL, which will bring the characters back into the range of normalcy, without leaving the muns feeling deprived of everything their characters earned? 2001 December 31, JamesStein, “Successfully Powering Down a Campaign”, in rec.games.frp.dnd (Usenet):