From Longman Dictionary of Contemporary Englishmudbathmud‧bath /ˈmʌdbɑːθ $ -bæθ/ noun 1 [singular]TASDLO a large area of mud Thousands of young people arriving for the festival soon turned the fields into a mudbath.2 [countable]DCBMH a health treatment in which heated mud is put onto your body, especially to reduce pain