Currently, a popular filler (first observed to be popularized by ABC news c.2000) in spoken media.
Often used at the end of sentences by paid "news readers" to fill airtime, while adding no value whatsoever.
ANY sentence with this ending can be said without it and the meaning remains unchanged.
Correct - "The house and barn were destroyed"
Incorrect - "The house was destroyed, and the barn was destroyed as well ... over to you, Kathy"