(someone) was like (quote)

English speakers sometimes talk about what someone said or thought like this:

He was like, "Hold on, wait for me!"

I was like, "Oh no! What am I going to do?"

I saw it on her face – she was like "Yo, leave me out of this!"

When people use "___ was like ___" to report what someone said, they don't always quote the exact words that the person said. This phrase makes it seem like you're reporting the general idea of what someone said rather than their exact words.

Whether you're reporting someone's thoughts or their actual words is sometimes clear but sometime unclear.

Use "___ was like ___" in casual speech. When you're speaking formally or writing, use "___ said ___" or "___ thought ___".

So then (sentence)

"So then..." is a way to tell what happened next in a story.

He said something about going out with his friends. So then I asked him, "Wait, I thought you and I had plans for tomorrow?"

let me (do something)

You can ask for permission to do something by saying "Let me ___." For example:

Let me call you back in a few minutes.

When you ask in this way, though, it can sound a little demanding or arrogant. It seems like you're commanding the other person.

(someone's) number

Your "number" means your telephone number:

Hey, what's your number?

Do you have his number?

whip (something) out

To "whip something out" means to pull it out of something quickly. We usually use this phrase to talk about pulling something out of a pocket or bag.

He whipped out a business card and handed it to me.

One point to be careful of with this phrase: it's sometimes associated with a man pulling his penis out of his pants. So listeners might laugh a little bit if you say "He whipped it out" without saying exactly what "it" was.

Yo, (sentence)

"Yo!" is a word that you can use to get someone's attention.

Yo! Watch where you're going! You almost ran over that dog!

You can also say "Yo" in the middle of a conversation if you want someone to pay closer attention.

Yo, let me ask you something: do you think that we should be worried about Greta?

It's very casual, and some people consider it slang.