Tensions in the South African jungle have reached boiling point on I'm A Celebrity, with viewers accusing Jo Beth Taylor of being an immature bully.

The former television host was lashed on social media on Tuesday night after coming to blows with former Bachelor star Laurina Fleure.

Hostilities have been brewing between the two since they entered the South African jungle nearly two weeks ago, but things escalated on Tuesday when Taylor called Fleure a "stupid bitch".

The latest upset came after Fleure complained to other contestants about how Taylor wasn't letting anyone else contribute to cooking responsibilities.

Taylor was filmed giving Fleure the middle finger behind her back after overhearing the conversation, and later told the show's producer's she thought the model was "an idiot".

"You are getting pretty close to seeing the first bitch slap on Australian television. She doesn't think at all. She only thinks of herself and no one else," the former Funniest Home Videos host said.

Fleure apologised to Taylor later on Tuesday and was supported in her efforts by fellow contestant comedian Akmal, but Taylor refused to accept the olive branch.

"I don't want any credit from you. What I do want is respect," Taylor said, "because I'm the one standing in there, three times a day, sweating my arse off. You slept all day today and I was cooking all day."

The show's official #ImACelebAU hashtag was hijacked by dozen of viewers unhappy with Taylor's behaviour, accusing her of ruining the show.

Earlier in the week, Taylor also called Fleure "a cow" and bemoaned what a "tragedy" it would be if Fleure "became famous from being a bitch".

I'm A Celebrity...Get Me Out Of Here! has come under fire for selective editing since its premiere last weekend.

Contestant Anthony Callea's husband Tim Campbell slammed Ten producers on Twitter and accused them of playing up Callea's tension with DJ Havana Brown.

"Hard to say why we see 6 hours of a carefully edited 168 hours a week," Campbell said, "TV will milk it and influence people."

Some I'm A Celeb viewers had little sympathy for Fleure after Tuesday's blow-up, accusing her of being a bully during her stint on The Bachelor in 2014.

Former Bachelorette star Sam Frost also weighed-in on Twitter, accusing Taylor of having a "bee in her bonnet".

"This bitching on #ImACelebrityAU is doing my head in," she wrote, siding with her former adversary.

Shake My Head, Jo Beth you are a bully, Laurina, you got this girl #ImACelebrityAU— Kendra (@ItsKennyH) February 9, 2016

Jo Beth is actually a child. How embarrassing #ImACelebrityAU— MatthewWH (@mattwh92) February 9, 2016