The pit of mud used in the motor-racing sport of mud bogging.

plural of mud bog

A wasp, from either the family Sphecidae or Crabronidae, that builds its nest from mud.

An athletic event in which runners compete to navigate an obstacle course designed to include stretches of mud.

plural of mud run

plural of mud plantain

Any of various aquatic plants in the genus Heteranthera.

plural of mud drum

A boiler's water drum, particularly one mounted low on the boiler so as to keep mud from circulation.

plural of mud bath