Tumbling verse is a lively, irregular kind of rhyming verse built from short lines and quick, springy rhythms. It often sounds hurried, playful, or comic because the stress pattern is loose rather than strictly metrical. The term is closely associated with Skeltonic verse, and the two are sometimes used for the same poetic style.
Example
Down the lane in the rain he ran,
Laughing, tapping his walking stick;
Mud on his boots and a tune in hand,
Fast as a fiddle, bright and quick.