What does "ribald" mean?

Ribald: A low, vulgar, brutal, foul-mouthed wretch; a lewd fellow. Spenser. Pope. Ribald was almost a class name in the feudal system . . . He was his patron's parasite, bulldog, and tool . . . It is not to be wondered at that the word rapidly became a synonym for everything ruffianly and brutal. Earle.

Additional senses

  1. 2.Low; base; mean; filthy; obscene. The busy day, Waked by the lark, hath roused the ribald crows. Shak.

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