MUD

v. muck up; soil with mud; cover with mud; spatter with mud

n. mire, wet soft earth, muck, wet dirt; slanderous remarks; slanderous remark written about a person

role-playing game on the Internet that allows many users to play together

In computer gaming, a MUD (Multi-User Dungeon, Domain or Dimension) is a multi-player computer game that combines elements of role-playing games, hack and slash style computer games and social chat rooms. Typically running on an Internet server or bulletin board system, the game is usually text-driven, where players read descriptions of rooms, objects, events, other characters, and computer-controlled creatures or non-player characters (NPCs) in a virtual world. Players usually interact with each other and the surroundings by typing commands that resemble a natural language, usually English. Modern commercial variants include graphics-based massively multiplayer online role-playing games (MMORPGs), such as World of Warcraft, as well as social avatar virtual worlds such as Second Life.
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Mud is a liquid or semi-liquid mixture of water and some combination of soil, silt, and clay. Ancient mud deposits harden over geological time to form siltstone or solid, mudrock lutites. When geological deposits of mud are formed in estuaries the resultant layers are termed bay muds. Mud is closely related to slurry and sediment.
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Noun
1. water soaked soil; soft wet earth
(synonym) clay
(hypernym) soil, dirt
(hyponym) bleaching clay, bleaching earth
2. slanderous remarks or charges
(hypernym) slander
Verb
1. soil with mud, muck, or mire; "The child mucked up his shirt while playing ball in the garden"
(synonym) mire, muck, muck up
(hypernym) dirty, soil, begrime, grime, colly, bemire
(derivation) clay
2. plaster with mud
(hypernym) plaster, daub
(derivation) clay
(classification) masonry

adj. tired, fatigued, exhausted, weary, forworn, worn-out; (Slang) ragged, whacked, bushed

bot, robot, program that simulates a user in a MUD game or in a group chat on the Internet (Computers)