The group seems a sort of combination of the iamb and trochee, and has an element in every possible zone of the movement cycle.
They are both within the zone of the unaccented syllable of the iamb.
Occasionally, however, and especially in the longer poems, the regular recurrence of the iamb is a little monotonous.
The group seems an iamb with a duplicated unaccented syllable.
Some, however, refer it to the supposed lop-sidedness or inequality of badgers' feet, answering to the ⏑— of the iamb.