Meaning/Usage: Similar to giving someone a debt coupon
Explanation: The literal meaning is exactly as it appears. However, this expression is merging all the words together to create a noun phrase. The closest meaning is a debt coupon. The coupon would be a piece of paper that would be a promise to pay back what was borrowed.
I don't have any money so can I get an I owe you.
I'll need an I owe you because I don't have any money.
I used up an I owe you already so he won't let me borrow again!
A.
Do you want to grab a steak tonight?
B.
I'd love to, but I won't have any money until payday?
A.
I'll give you an I owe you until you get your paycheck!