A: We can't afford this house.
B: Are you sure?
A: We will be house rich, but cash poor.
B: What do you mean?
A: Our monthly payments will be too high.
B: We won't have any money for other things?
A: No, we won't have money for gas or food.
B: We'll be eating peanut butter sandwiches?
A: Without the peanut butter!
B: That's no good!
A: We have to find a cheaper house.
B: Of course. We can't live without gas or peanut butter.