I'll pay that
This is what Wimpy says when he wants to borrow something, but he's never going to pay you back. It’s like asking for a loan, but you're the bank and he’s the guy who spends it all on tacos.
"I'll pay that," he said, like he was going to pay me back on Tuesday... which never happens.
She said, "I'll pay that," and then she went to the mall and spent it all.
He said, "I'll pay that," and then he spent it on a burger and a soda.