mudder

As nouns the difference between mudder and rudder

is that mudder is mother / mamma (as in deine mudder "yo mamma") while rudder is (nautical) an underwater vane used to steer a vessel the rudder is controlled by means of a wheel, tiller or other apparatus (modern vessels can be controlled even with a joystick or an autopilot).

As nouns the difference between murder and mudder

is that murder is an act of deliberate killing of another being, especially a human while MUDder is a person who participates in MUD games.

As a verb murder

is to deliberately kill (a person or persons).

As nouns the difference between udder and mudder

is that udder is an organ formed of the mammary glands of female quadruped mammals, particularly ruminants such as cattle, goats, sheep and deer while MUDder is a person who participates in MUD games.