In a shameful 35-minute rant, Jackiey knocked back red wine spritzers as she laid into Jade, who died from cervical cancer in March.
She told how she bellowed obscenities at Jade's grief- stricken sons Bobby, five, and Freddie, four.
Jade's widower Jack Tweed - locked up on remand on a rape charge - also came in for abuse, with Jackiey declaring he had "shagged away" his grief.
She horrified drinkers in the Harley's Bar near Los Cristianos, Tenerife, when she turned her venom on her own grandkids. Jackie, 51, slurred: "Jade's youngest one Fred, he tried to be a big man. I said, 'You know what, you better f*** off now.' I did, Jade's little one. I said, 'You better f*** off.' I said, 'I don't care you're only four, I'm telling you now, f*** off Fred. Don't be 11 when you're four or I'll treat you back as 11. And they'll respect you to the max for that'.
"You wanna call me a bad granny then f****** start. It aint gonna change me. If he comes and does it again I'll tell him to f*** off same way."

She then lampooned Jade, whose infamous blunders endeared her to the nation when she leapt to fame on Big Brother.
Wearing an expensive black and white floral print dress, Jackiey told fellow drinkers: "She was in her own f****** world.
"When she went to Belfast she saw a photo of the f****** Mona Lisa and she said it was Pistachio. Where'd she get that from? Where's East Anglia? Do I need a passport?"
Chain-smoking Jackiey continued her onslaught: "That's only a bit. She had to go to Newcastle to do a film premier and she went: "Do I need euros, Mum?"
Asked about Tweed, Jackiey said: "He's grieving and he's drinking but I can't understand him sex wise. Don't grieve and tell me you're having sex, cause that don't work. He's 22, he got engaged beside her bed. He's only a child." Breaking her silence over Tweed's rape charge, Jackiey declared: "He's not guilty."
Clutching her car keys as she guzzled more booze, Jackiey then branded her grandsons' dad Jeff Brazier an "a***hole".
Sporting a golden tan and blonde highlights, the bisexual ex-junkie - who's raked in thousands of pounds from publicity surrounding her daughter's death - spoke ahead of a lavish invitation-only bash last night to celebrate her engagement to lover Jason Cooper, 36.

Jackiey, who plans to marry her former soldier boyfriend next February, bragged about owning homes in Tenerife, India and, bizarrely, Nigeria.
She burst into fits of laughter as love rat Jason joked about a woman from social security wanting her picture taken with her in the bar.
Emerging from the bar with yet another pint of cider, Jason yelled: "One of the persons here they're from the social they want a picture with you." Jackiey turned to the woman as Jason joked: "I told her you from the social security and she believed it." Jackiey laughs, saying: "That's so funny."
But there were few smiles earlier when a pal pulled her back from headbutting a woman who branded her a "hard-face ****" who had "never been a mother".
Later, as she became more loose-tongued Jackiey, who has a paralysed right arm and admits still smoking cannabis, even poked fun at her own mum, Jade's beloved granny Sylvia, who has dementia.
Jackiey told drinkers: "My mum's 86 and she's got dementia and she's lost. I'm sorry, I don't mean to laugh.
"When Jade was alive she idolised mum. My dad's pulling his hair out, but I laugh at her. I can't help it, I laugh."
As the crowds grew, Jackiey reeled off tear-jerking tales about her daughter - only pausing to scream obscenities at passing youngsters. Jackiey then invited total strangers to her engagement party.
Finally, as Jason dragged her off to yet another bar, Jackiey boasted of yet another expensive jaunt to Barcelona this week - to celebrate her birthday.
Last night Jackiey's spokesman denied she swore in front of her grandkids.
He said: "Jackiey was enjoying a joke with friends and not all of it should be taken seriously."
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