I can try but people too often try to translate macro-economics into household terms like 'maxed out the credit card' etc so I'm very aware this is going to be a very clumsy analogy.
To get rid of one element let's make the nation a small corner shop rather than a household and let's give him some debts he has to repay. He can either focus solely on raising more money by increasing his margins (putting prices up) and selling off what's left of his current stock, however poor its condition, to raise money to pay off debts AND to pay for new stock or he can take measures to increase demand, putting prices down and getting in some new stock to bring the customers in.
Iceland has taken the second route, it didn't, as Trapezerjohn suggests, tell it's creditors to go to hell (cancel the debts outright) it told them that it wasn't going to make debt payments for a while (went into default) so it could (in terms of our analogy) generate more demand. Now it has resumed the payments of many previous debts from the growth in their economy.
That's a huge over-simplification but I hope it helps.