Jennette McCurdy is a treasure trove of unflattering information.

The retired actress’ new book, “I’m Glad My Mom Died,” is filled to the brim with unflattering information about her former “Sam & Cat” co-star, Ariana Grande.

Last week, an excerpt from her book was published in which she described the moment Grande “broke” her.

Now, more details from her book have come out, and Grande is once again the target of McCurdy’s words.

McCurdy claims the “Dangerous Woman” singer was given permission to pursue outside career opportunities, while she personally was denied those opportunities.

“I booked two features during ‘iCarly’ that I had to turn down because the ‘iCarly’ team wouldn’t write me out of episodes to go shoot them,” she writes.

McCurdy alleges that producers would put Grande’s character into a box so that she could miss filming.

“Are you. Kidding me,” McCurdy recalls thinking. “So I have to turn down movies while Ariana’s off whistle-toning at the Billboard Music Awards? F**k. This.”

“From that moment on I didn’t like her. I couldn’t like her.”