Kate Gosselin claps back after estranged son Collin calls on her to take a lie detector test ahead of his bombshell memoir

's estranged son Collin challenged her to take a lie detector test with him so they could set the record straight about alleged past abuse.

'Mom, if you're listening to this, we would ask about the zip ties [used to bind my hands and feet in a locked basement],' the 22-year-old former child star told Strange McKnights' podcast last Saturday.

'I would also let her ask questions like, "Were you ever violent towards your siblings? Did you ever put your hands on your siblings?" Stuff like that. I want to get into everything. And this is where we are both hooked up to lie detectors, heart monitors, everything.'

Collin added: 'I always say there's the truth and then there's the truth from Kate Gosselin's point of view. So let's just put it all out there.'

And as recently as Tuesday morning, the Gosselin Pressure Washing owner claimed his 51-year-old mother used to write in her diary that she 'had to pray to God to stop hitting' her then two-year-old toddler.

Collin - who boasts 190,000 Instagram/ followers - added: 'This is why using my voice to put these things in the light is so important.'

Grand Central Publishing is set to release the homeschooled sextuplet's 304-page memoir Shadow of Eight: Surviving the Reality of My Childhood on October 13.

'Nothing surprises me anymore in that department,' Kate replied to a TikToker about her mother-son scandal.

'Sadly, only parents who have a mentally ill child understand!' the pediatric nurse replied to another fan.