Why Rudolph Drives Poem by Reason A. Poteet

The form grook ('gruk' in Danish) was invented by the Danish poet and scientist Piet Hein. He wrote over 7,000 of them, most in Danish or English, published in 20 volumes. His gruks first started to appear in the daily newspaper 'Politiken' shortly after the Nazi Occupation in April 1940 under the signature Kumbel Kumbell. The poems were meant as a spirit-building, yet slightly coded form of passive resistance against Nazi occupation The grooks are characterized by irony, paradox, brevity, precise use of language, sophisticated rhythms and rhymes and often satiric nature.

information from Wikipedia

This particular grook illustrates trochees.
A trochee is a metrical foot composed of an accented syllable followed by an unaccented one, as in the words, (Ru dolph) (cook ies) (San ta) among others.