Usually "expensive money" means that it's hard to borrow.

"Devalued" refers to purchasing power. "How much food will $1 buy me?"

They're describing different things. In terms of the economic relationships that result in the current scenario, I'm not even going to try. Ignoring that we don't really know and a lot of traditional economics rely on the assumption that actors are rational (which we now know is absurd), I'm far from an expert in macro-economic theory. Systems are complicated.

Some other good answers already but here's a sound byte version:

It's currently expensive to borrow money, and then the borrowed money isn't as useful as it used to be.

you can think of the prime interest rate as being the cost of money. high interest rate money is expensive, low and its cheap. Because its the cost of the loans. Its actually not expensive now I would call it about normal. we have been running cheap for a long time now before recent times. at or just above zero.

“Money is expensive” = interest rates are high.

I'm guessing he means expensive to borrow. Otherwise, yeah, that wouldn't make much sense.

I think, printing more money under the same conditions is the primary inflation/devalue, while the federal interest rate determines the baseline for loan interest rates. If the federal rate of return is high, it makes no sense for anyone to buy loans for a lower rate as the US gov has a longer upstanding record of paying back those debts/returns. If the fed is paying a high baseline rate, so is everyone else. Why would a bank or anyone buy your debt if they can put that money in government bonds and get a higher or the same rate of return. So money is expensive because the federal rate is high. At least that is my most simple understanding.

Hard to know without more context.

However, one thing people have not mentioned yet is exchange rates and foreign trade. The republican candidates have reportedly been talking about devaluing the dollar in order to increase exports and reduce the trade deficit. A strong dollar makes US exports more expensive for people overseas, and imports cheaper in the US. Devaluation runs a big risk of creating huge inflation domestically even if it props up exports.

"How come pennies are cheap, but I need a lot of them to buy a car?"

The less something is worse, the more of it you'll need to match the value of products and buy them.

It's all fake. Literally. Its made up. It only exists to the extent we all participate in the con.

Grow a garden. Trade with your neighbors.

Fuck the banks. Focus on your village.