Out of your mind

Out of (one's) mind (used as an adjective or adverb)

Situation #1: Two friends

Edward: What's going on with Tom? He's acting weird.
Jean: Oh, he's completely out of his mind right now. His girlfriend dumped him, and now he's acting crazy. But he'll be fine once he calms down.

Explanation: To be "out of (one's) mind" means that the person is not thinking clearly, and usually suggests that the person is acting crazy, as in the example above. In addition, the expression can be altered with certain words for additional meanings, as seen below:

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Situation #2: Two friends
Frances: Do you have any plans tonight?
Bill: No, and I'm bored out of my mind! What's going on?
Frances: Let's get dinner then.
Bill: Cool.

Explanation: To be "bored out of (one's) mind" means to be extremely bored. 
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Situation #3:Two friends
Kim: How was the party last night?
Jack: Not great. Steve got drunk out of his mind, and he tried to start a fight at the bar, so I had to give him a ride home.
Explanation: To be "drunk out of (someone's) mind" means to be extremely drunk, usually to the level that the person will not remember his/her actions the following day.

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To be fire

To be fire: Referring to something in a positive way; a really good, awesome or amazing thing

#1: Two roommates are talking about a friend
Tina: Hey, Cal. Did you see Cheryl at the party today? She has lost so much weight.
Cal: Yes,  I talked to her for quite a while. She has also been working out almost every day because she wants to get in shape for her wedding.
Tina: Well, she doesn't need to worry. She looks gorgeous!
Cal: I know! She is fire!

#2: Two friends are eating at a new restaurant

Jason: This restaurant is great! Thanks for inviting me.
Jen: It is. I heard about it from a friend who eats here all the time.
Jason: I don't blame her. This food is fire!
Jen: It's so delicious. We should come here again tomorrow!


Explanation: "To be fire" means that something or someone is really awesome or amazing. Something is really cool if it is fire. In conversation #1, two friends are talking about how beautiful Cheryl looks. In conversation #2, the food at the restaurant is really delicious.

https://languagesystems.edu/

 

"To have a short fuse"

Context #1
Sara: I think I am going to break up with my boyfriend.
Tammy: Really?  Why?
Sara: He gets angry so easily.  One little thing gets him upset.
Tammy: Yeah, I have noticed that he has a short fuse.

 
Context #2
Chris: When I was in the 4th grade, I had this teacher named Mr. Wilson.  He would explode with anger over really small things.
Ryan: Wow!  It sounds like he had a really short fuse.
Chris:  He sure did!

Meaning: "to have a short fuse" is used when someone gets angry really easily or quickly.

https://languagesystems.edu/

To Tie the Knot

Meaning:  To get married

Hi Karla,

I hope you had a great vacation! A lot happened here while you were is Costa Rica!
Michelle went to Florida for a few days, Vini bought that car he wanted, and... what else? Ah, guess what?! Lina and John tied the knot last week!
I am so happy for them. I saw some pictures and they looked fabulous.
Well, I hope to see you soon and hear all about your trip! Call me when you have a chance.

Sylvia

https://languagesystems.edu/

Kadult

Melissa: I’m trying to get Jon to move in with me, but he says he prefers living
with you as a roommate.
Aaron: It’s great living with Jon. It’s like we never left college.
Melissa: You guys are such Kadults. When are you going to grow up. That’s why you don’t have a girlfriend.
Aaron: Blame our parents, they loved us too much.
Melissa: You guys need to become men. Playing video games all day is so
childish.

Kadult means you are a grown adult, but still act like a kid (child)

https://languagesystems.edu/

Ball in (your) Court (used as an expression)

Meaning:
The expression, “the ball’s in (your) court,” is typically used to express that it is now the other person’s turn to commit to the next move.  This expression comes from the game of tennis, where it is now the opponent’s turn to perform the next action.  This is usually a follow-up expression where the first person had already initiated the first action and it is now the other person's turn to react to it.

Situation 1:
“The salesman provided the customer with all of the information and details about the product and also offered him a great discount as well.  The ball is now in the customer’s court to decide if he wants to buy it or not.”

Situation 2:
Mary:     “My boyfriend and I have been together for about 10 years now and I think I’m ready to take it to the next level.  We both have good jobs now and we both still love each other very much.”
Lisa:    “Have you tried asking him if he wants to start a family together?”
Mary:    “I did and he said he needed a bit more time to think about it.”
Lisa:    “Okay, then it sounds like the ball is in his court now.”

https://languagesystems.edu/

Tag along

Tag along (used as a verb, adjective or noun)

Situation #1: Two friends

Kate: I'm so excited. I'm going to check out that new horror movie!

Chris: Really? I've been wanting to see that. Mind if I tag along?

Kate: Not at all! Let's go!

Explanation: "Tag along" means to go with someone. When used as a verb, it's usually asked in a question (as in the above example, or if Kate had asked "Would you like to tag along?"). However, when used as an adjective or noun, "tag along" (or sometimes "tagalong" or "tag-along") is usually more negative, suggesting that the person is following another in a constant and possibly annoying way, as seen in the next example:

Situation #2: Two friends

Brie: Have you seen Valerie?

Kim: No, why?

Brie: Well, I'm avoiding her. She is such a tagalong! She follows me everywhere, and it's getting annoying!

Kim:  She doesn't seem like she's that annoying.

Brie: She followed me into the bathroom earlier, even though she didn't have to go, and then she followed me to my class, even though her class was on the other side of the building! I don't need a tag-along friend!

Kim:  Uh...

Valerie:  Hey guys! What are you talking about?

https://languagesystems.edu/