Definition of "mudder"

mudder¹

noun
plural mudders
1. A racehorse that performs well on muddy or wet tracks.

mudder²

noun
plural mudders
1. (Internet) A participant in a multi-user dungeon.
  Quotations
  For mudders like myself (an AI researcher), ’bots and their associated likely behavior patterns are old hat.
  1993, Leonard N. Foner, “What's an Agent, Anyway? A Sociological Case Study”, in MIT Media Lab‎, archived from the original on 9 December 2022
  You will not find any stock. You will not find any easy mobs. You will not find any +100 dam 'big swords of I win'. You will not find twink mudders. You will not hear about how Jim the Kewl dOOd scored last night at his sister's birthday party. You will not find bots.
  1997, Gov't Cheeze, “[AD/REQUEST] Builders and Players (twinks need not apply)”, in rec.games.mud.admin (Usenet)

mudder³

noun
plural mudders
1. Pronunciation spelling of mother.
  Quotations
  What about me? I wanna be in your myorsical! I can be the orphan! Oh, where is my mudder-dee-doo?
  2006 August 14, Michael Chapman; Matthew Chapman, “No Hands On Deck!”, in Homestar Runner‎, spoken by Coach Z (Matthew Chapman)