I'll pay that

Used by Australians to positively affirm a statement/opinion someone makes/has. The saying originates from Australian Rules Football, Australia's national sport, where an umpire "pays" a free kick, a mark (catch from a kick), etc.

I'll give you that.
Granted.

To be dumbfounded by someones comment, then allowing that comment to pass or giving them credit for what they said.

Semi-nice way of telling someone you're never going to pay the back... Ever.

"I'd like you to lend me some money"

Etymology is from the cartoon "Popeye", where the character Wimpy would frequently utter this phrase. He was a glutton, and would consume burgers at a ferocious rate but could rarely pay for his habit.

The phrase implies the underlying feeling that the person will unlikely actually pay for the hamburger (or whatever) on Tuesday (or ever, for that matter.

From Popeye cartoons. Line often uttered by Popeye's portly friend Wimpy. Of course, "Tuesday" would never come, and so Wimpy constantly secured himself a free lunch. Thus the line is used to jokingly indicate that one would like to "borrow" something without any real intention of ever paying you back.

Phrase used by Wimpy, Popeye's hungry pal. Song from the 1980 movie "Popeye."
An appeal for a small loan that will not be payed back.
Generally used by a person who considers themself a likeable egomaniac.

A line used by Popeye's gambling and hamburger loving friend Wimpy in the Live-Action Popeye film.