mud

Universal Words noun [U] wet earth that is soft and sticky: The car wheels got stuck in the mud. * Your boots are covered in mud. * mud bricks / huts (= made of dried mud) IDIOMS fling, sling, etc. mud (at sb) to criticize sb or accuse sb of bad or shocking things in order to damage their reputation, especially in politics seealsoMUD-SLINGING moreatCLEARadj., NAMEn.