Get ready to sip the tea, dahlings — as only Mariah Carey can brew it.

The superstar pop diva is serving all the dish that you can eat up in her much-anticipated memoir, “The Meaning of Mariah Carey,” out on Tuesday. It’s the first release of a big Mimi week: She’ll also drop a new album, “The Rarities” — a collection of previously unreleased recordings — on Friday.

But by then, loyal Lambs — as Carey’s faithful fans are called — will know a lot more secrets about the star from reading her book. Here are 10 juicy highlights, from the singer getting drugged by her sister and held at knifepoint by her husband to the sad story behind her becoming the Queen of Christmas.

1. She felt she didn’t belong

Growing up biracial, with a white mother and a black father, Carey didn’t feel that she belonged — or even deserved to exist.

“There was a time in my early childhood when I didn’t believe I was worthy of being alive,” she writes. “I was too young to contemplate ending my life but just old enough to know I hadn’t begun living nor found where I belonged. Nowhere in my world did I see anyone who looked like me or reflected how I felt inside.”

2. She grew up in a violent household

She writes in the book that her “broken” big brother, Morgan, was violent and abusive — to the point that one night, a 6-year-old Carey had to call the cops after her teenage sibling hurt their mother. “Choking in tears, I did my best to calmly tell her, ‘My brother really hurt my mother, and I’m home alone. Please come help.’ … One of the cops, looking down at me but speaking to another cop beside him, said, ‘If this kid makes it, it’ll be a miracle.’ And that night, I became less of a kid and more of a miracle,” she writes.

3. She survived an alleged murder attempt

Carey writes that of her mother’s lovers threatened to kill her and her mom for leaving him. “He was holding a long double-barreled shotgun in one of his hands,” she writes. “ ‘I’m not going to let you guys go,’ he said. ‘I’m going to chop you up and put you in the refrigerator and make you guys stay here.’ Well, after he said that, I rushed to get into the car. My mother started the engine.”

4. Her sister drugged her and left her prey to her boyfriend when she was a pre-teen

Carey claims in the book that, when she was only 12, her older sister Alison drugged her with a whole Valium and left a young MC prey to one of her boyfriends, who was packing a pistol on a creepy car ride.

“John, his gun, and I made two stops: a card game and a drive-in movie,” she writes. “John put his arm around me. My body went stiff. My eyes were fixed on his gun. John pushed in closer and forced a hard kiss on me. I was nauseous and scared; I felt immobilized.” But thankfully, she was saved by an elderly man “peering directly into John’s car … I committed that man’s face to memory.”

5. She called living with her ex-husband a prison

She would keep a “to go” bag under the bed she shared with her ex-husband — and former label head — Tommy Mottola at their Bedford, New York compound, which she referred to as “Sing Sing.” “I would keep my purse filled with essentials just in case I had to make a quick escape,” she writes. “Captivity and control come in many forms, but the goal is always the same — to break down the captive’s will, to kill any notion of self-worth and erase the person’s memory of their own soul … But thankfully, I smuggled myself out bit by bit, through the lyrics of my songs.”

6. She claims her ex threatened her with a knife

Carey says that Mottola once held a knife on her when she wanted to leave him. “I was sitting still, looking down at the table, when Tommy walked over and picked up the butter knife from the place setting in front of me,” she writes. “He pressed the flat side of it against my right cheek…Tommy held the knife there. His boys watched and didn’t say a word … That was his last show with me as the captive audience at Sing Sing.”

The Post has reached out to Mottola for comment.

7. She lives “Christmas to Christmas”

Carey, who is famous for celebrating “anniversaries” instead of birthdays, breaks down her concept of time in the preface.

“Once I got my record deal I exhaled, and my life began,” she writes. “From that day on, I calculated my life through albums, creative experiences, professional accomplishments, and holidays. I live Christmas to Christmas, celebration to celebration, festive moment to festive moment, not counting my birthdays or ages … Why ruin the journey by watching the clock and the ticking away of years?”

8. Christmas wasn’t a happy time growing up

Miss “All I Want for Christmas Is You” maintained her love for all things Xmas despite her family playing Scrooge as a child. “I couldn’t fathom why every year, they just had to ruin Christmas,” she writes. “I set about creating my own little magical, merry world of Christmas … All I needed was a shower of glitter and a full church choir to back me up. My imaginary Christmas was filled with Santa Claus, reindeer, snowmen, and all the bells and trimmings a little girl’s dreams could hold.”

9. She knew she was a musician at 3 years old

Carey was born to be a diva — in every sense of the word. She got it from her mama, a Juilliard-trained opera singer.

“One day, while practicing an aria from the opera ‘Rigoletto,’ she kept stumbling on this one part,” she writes. “I sang it back to her, in perfect Italian. I might have been three years old. She looked at me, stunned, and at that moment I knew she saw me. I was more than a little girl to her. I was Mariah. A musician.”

10. Her 2001 ‘TRL’ appearance was a ‘stunt’

Her infamous “TRL” appearance in 2001 — rolling an ice-cream cart and rocking a “Loverboy” t-shirt — was a stunt gone awry. “It was an innocent and silly stunt and highly unrehearsed,” she writes. “I was hoping Carson Day would play off of me, riff, and involve the audience … But he didn’t play along … It seemed like a good idea at the time. Any idea was good at that time. I was like a stand-up comic who bombed a set.”