Irish Reach-around

Asking someone to return a favour that you haven't done for them yet. i.e. "Yes, I will dog-sit for you at some time probably. By the way, here's my dog. You have to look after her while I go on a mid-week trip to New York."

I can't believe Colin had the nerve to give me an Irish Reach-around. I have to look after his dog because he made a vague promise to look after mine in the future.