Home › Words › M › mudholemudholemudhole · noun — A hole full of mud, especially one in a road.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom mud + hole.nounA hole full of mud, especially one in a roadA hole near the bottom of a steam boiler, through which the sediment is withdrawn.Definitions & examples from Wiktionary (CC BY-SA 3.0).