17 phrases only baby boomers understand

Before millennials were busy staying on fleek and Gen-Zers were clapping back with "OK boomer," baby boomers had their own way of communicating.

Although there's no official definition, baby boomers are generally considered to be those born between 1946-1964 (but some definitions start and end a little earlier). According to the U.S. Census Bureau, there are some 76 million boomers in the U.S., which means there are a lot of people going around having a gas and getting hacked off. But what does it mean?

Here's a look at some popular words and phrases that are mostly no longer in use. Definitions are from language site Babbel.com Merriam-Webster, and Dictionary.com.

Meaning: Cool.

This one's fairly obvious, but it's likely that no one under 55 has ever used it seriously.

Meaning: What's your problem?

"Bag" can also simply refer to something a person is interested in. Example: "Using baby boomer slang isn't really my bag."