Oh, the times they are a-changin'! No one really says that anymore. But Bob Dylan was right. The only constant is change. People change. Music changes. Literature, science, philosophy - ALL CHANGE. 

Language is not immune. Just like human beings, language is a dynamic thing. It changes and evolves over time according to our needs and desires. Of course, while this helps our words to stay up to date with our trends, it means we leave behind some great words and phrases because we find replacements for them that are more accurate... or just cooler.

That doesn't mean the replacements are as much fun. And what are we doing here if we're not trying to have fun? Am I right?

No one says "call me back" anymore because apparently, calling someone is rude now. We say "hit me up" instead, which is fine. I get it. It doesn't mean that we have to physically strike our friends (although we really want to sometimes) it's just how people say "call me back" nowadays. And you might have noticed that people say "like" a lot. Like they say it A LOT. It's like, the word of the day. Which has given us the following possibility in a phrase:
"Like, I don't like the way people like to say like, like all the time."

Does it make you want to smack someone or "hit them up"?

Alas, (another word that's fading and it's a shame) even "like" is being overtaken by a new phrase that seems to cover just about anything you want to say or express. I mean, it's being used by almost everybody now. I mean, you hear it everywhere. It's infected Movies, TV, Music, and everyday conversations with people. I mean, like, a lot of people. Have you guessed what that phrase is by now? I mean, it's right there. I just used it three times in the last paragraph.

I mean.

Now, people are explaining what they mean before they say it. I'm just as guilty (Do you have any idea how hard it was not to type: "I MEAN I'm just as guilty"? It's a bit maddening if you ask me. But I'm used to it now. It's kind of like a companion or cousin of "know what I mean?" See what I'm saying?

If you want people to hear what you have to say, you have to speak their language. And, as we've established, language evolves to suit those who use it.
Some of following phrases are being heard less and less nowadays. Either because we've found more concise phrases to replace them, or they're just more obscure. They still mean what they mean or what they used to mean. You may be using some of them yourself or know someone who uses them.  But these old phrases are still good. I mean, some of them are.

Some of them can "go the way of the dodo" (look it up)

"You bet your sweet bippy" - WTF is a bippy?

"Diddly squat" - it's like a pronoun of a cussword.

"A nod is as good as a wink" - Really? WTF?!

"Keen as mustard" - It actually refers to KEEN'S brand mustard and it's spicyness. Try to ketchup...

"A stitch in time saves nine" - No. Just NO.

"All that and a bag of chips" - I actually still hear this from time to time...and I love chips.

"Tickle your fancy" - Yep. It means what it sounds like. Kinda suggestive? Dirty? Yep.

"Bob's your uncle" - very British way of saying "there you have it".

"The greatest thing since sliced bread" - You gotta understand, slicing bread was apparently revolutionary...in a good way.

"Don't have a cow!" - This one should come back! Bart Simpson tried and he has kept it on life support. It's so useful! It means Calm down! Shut up! Keep your shirt on! Don't freak! Easy, killer! 

You get it