Mallet (left) entered the show on 19 November as a "surprise" contestant
TV presenters Timmy Mallett and Esther Rantzen have become the fourth and fifth contestants to be booted off I'm A Celebrity... Get Me Out Of Here.
Mallet left the jungle after losing a "bush tucker trial" which involved downing gruesome cocktails against former police chief Brian Paddick.
As he left, he said: "Bother, whoops, shame, I'm disappointed."
Former That's Life host Rantzen was also removed from the show after receiving the fewest viewers' votes.
The surprise trial was announced at the end of Saturday's live show and took place immediately after the programme went off-air.
Mallett, who says he is vegetarian, proved unable to swallow a succession of drinks made from crushed insects.
The pair's first drink was a blend of cockroaches and meal worms, followed by a crunchy snack of Mopani worms mixed with giant ants.
Paddick was unable to keep the second dish down, but won the next round - where the contestants were challenged to stomach a dish made from crocodile and camel.
Esther Rantzen became the fifth person to depart this series
During the final round, Mallett tried to put off his opponent by grabbing his arm as the pair tried to swallow beach worms - but it was to no avail.
On returning to the camp, Paddick complained about Mallett's behaviour: "Timmy was very unfair, see these marks here in my arm, it's out of order," he said.
"The worm was wriggling about in the glass and Timmy was dragging it out when he suddenly grabbed my arm - that was a deliberate attempt to stop me chewing and to stop me swallowing."
"He has a calculating side to him that I didn't find pleasant so I'm not going to be crying on my pillow about the fact that Timmy's gone."
Tennis player Martina Navratilova said: "I'm really disappointed with his behaviour. I've never cheated and that sucks."
Rantzen, 68, was a more popular member of the team who enjoyed a flirtatious relationship with ex-EastEnders actor Joe Swash, 42 years her junior, and described him as "very loveable".
After leaving the camp, she said: "I'm feeling very sorry to leave because they are such lovely people and the whole environment is so gorgeous. But I think it's the right moment."
She said the experience was more physically challenging than she expected and much dirtier.
The campsite nearly met with disaster when Swash attempted to dry his clothes over an open fire, but the blaze was put out by Rantzen, who quickly covered the burning clothes with a damp towel.
Heavy winds and rain have blighted the current series of the Australian-set show, causing friction among the contestants.
Fights have broken out over who gets to sleep under the shelter of a red double decker bus - which contains two beds.