I'll pay that
This is when you're begging someone for money, like you're a beggar in a rich neighborhood. You're hoping they'll give you a dollar, but they just smile and walk away.
"I'll pay that," he said, even though he had no money and a broken watch.
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.