The Abercrombie & Fitch model branded Murphy "horrible" and "unreal" after host Brian Dowling revealed that her close friend had nominated her to leave.
"This guy is playing a game, he's unbelievable," she angrily stated in her post-eviction interview. "He's a snake. I'm absolutely shocked, he's unreal.
"He says, 'I'm 100% real' all the time - it's like he's trying to convince himself he's real. I'm glad people see that."
She later added: "He's not real at all. He's so un-genuine, he's horrible. I do not want to see him ever again."
Another person that Maisy struggled with in the house was former Miss Manchester Louise Cliffe, although the 19-year-old had much kinder words about her.
"I didn't really connect with Louise as well as I would have liked to have done," she confessed. "I think she's a lovely girl, I think she's beautiful."
Maisy went on to express regret at how she only connected with Mark Henderson when he quit the show this week, explaining: "That made me realise that Mark was a genuine person [and] it really upset me. He's going to do really well anyway."
Watch Maisy being evicted from the Big Brother house below:
However, Maisy affirmed to Dowling that she still thoroughly enjoyed her time in the house, despite how she felt about other contestants.
"I'm happy and I'm positive," she said. "I've had my time in there. I felt like a winner walking in 'cause I beat out thousands of people to get to that place."
Maisy was also probed on her romantic encounter with Aaron Allard-Morgan in week three and her subsequent friendship with apparent love-rival Faye Palmer.
"After I kissed him, I did not fancy him anymore," she said. "It was in the moment and then I just gave him to Faye. It was nothing really."
Maisy's eviction tonight was followed by the arrival of ex-Gladiators star Jem Palmer, Faye's sister.
Watch Maisy's best bits below: