Offbeat describes a poem, voice, or image that feels unusual, quirky, or intentionally unconventional. An offbeat poem may use surprising comparisons, odd humor, irregular phrasing, or an unexpected subject matter that sets it apart from more traditional or polished styles.
The word can also suggest a slightly eccentric tone, as when a poet mixes everyday detail with strange, playful, or startling touches.
Example
The moon wore sneakers to the midnight fair,
and sold bright carrots to the cold blue air.
A clock with feathers sang beside the door,
then tipped its hat and drifted off the floor.