In archaic terms the difference between parody and mocker
is that
parody is a popular maxim, adage, or proverb while
mocker is a deceiver; an impostor.
As nouns the difference between parody and mocker
is that
parody is a work or performance that imitates another work or performance with ridicule or irony while
mocker is a person who mocks.
As a verb parody
is to make a parody of something.