AceShowbiz - Jennette McCurdy gave fans a look at how abusive her late mom was. In a sneak peek of her appearance on the "Red Table Talk", the Sam Puckett depicter on "iCarly" read a harsh email from her mom Debbie, who died of cancer in 2013.

In the clip shared exclusively to PEOPLE, the former actress read, "I am so disappointed in you." She continued reading as co-hosts Jada Pinkett Smith, Willow Smith and Adrienne Banfield Norris reacted with shock.

" 'You used to be my perfect little angel, but now you are nothing more than a little' - all caps - 'slut, a floozy, all used up,' " Jennette read. " 'And to think you wasted it on that hideous ogre of a man.' "

" 'I saw the pictures on a website called TMZ. I saw you rubbing his disgusting hairy stomach,' " the message added. " 'I knew you were lying about Colton.' (I had told her I was with a friend, Colton.) Add that to a list of things you are: liar, conniving, evil."

" 'You look pudgier too. It's clear you're eating your guilt,' " she went on. " 'Thinking of you with his ding-dong inside of you makes me sick. Sick! I raised you better than this. What happened to my good little girl? Where did she go and who is this monster that has replaced her? You're an ugly monster now.' "

Debbie claimed she told Jennette's brothers about her and "they all said they disown you just like I do." She then emphasized, "We want nothing to do with you. Love, Mom - or should I say Deb since I am no longer your mother? P.S. Send money for a new fridge; ours broke.' "

Despite the disturbing message, Jennette, who is promoting her new book "I'm Glad My Mom Died", had some laughs reading the letter, especially for the last part. "The P.S. gets me," she said, to which Willow responded, "Wow!"