Spendthrift

Are you a spendthrift?

This is a weird word, made up from 2 words, spend and thrift. Spend is a verb which means to exchange money for some item or service, thrift is a noun which means the state of not having or not using money.

So it would be an oxymoron if those words appeared together.

But as one word it means someone who spends a lot of money, not one who is thrifty. odd.