Why? Simply because this is a euphemism for asking for a freebie, a handout or a loan that you never intend to pay. First made famous by the bloated nitwit 'Wimpy', a waddling
loser with an eating disorder in Popeye comics, it is a metaphor for the financial irresponsibility that is epidemic in American
society today.
You have undoubtedly seen these 'Check Cashing' businesses that have a habit of springing up in the declining parts of town. Well, what these leeches do is give the
gullible and irresponsible dregs of our
society ADVANCES on their next paycheck, at exorbitant interest rates, skirting the usury laws. Once they get their claws into you, you are doomed. Idiots do this sort of thing in order to support their lotto or cigarette habit.
"I'll gladly pay you Tuesday, for a hamburer today", simply put is spending
money before you have it. -or- simply mooching.
The United States Federal
Government churns out millions of dollars of military, welfare and other 'hamburgers' that it does not intend to pay for until next
Tuesday. In other
words, by your grandchildren.