Doggerel

Part of speech: noun (n.)

A sort of loose or irregular verse; mean or undignified poetry. Doggerel like that of Hudibras. Addison. The ill-spelt lines of doggerel in which he expressed his reverence for the brave sufferers. Macaulay.

Part of speech: adjective (a.)

Low in style, and irregular in measure; as, doggerel rhymes. This may well be rhyme doggerel, quod he. Chaucer.