Phillip Schofield was left speechless today after a guest with Tourette's syndrome blurted out 'silver fox' at him mid-interview. Ellie Grant, 22, was appearing on ITV's This Morning to discuss how she suddenly developed the condition - and how she had found love with fiance Jordan - who is deaf. The pair hit the headlines earlier this year after being labelled the perfect match because whenever she becomes rowdy, he simply switches off his hearing aid. They appeared on  today's show to discuss how they met - and how they live with both of their conditions. But in the middle of the pre-recorded interview, Miss Grant suddenly suffered a verbal tic - and blurted out 'silver fox' at Phillip, 53. Silver fox is the nickname of the father-of-two, who smiled, but looked bemused and slightly embarrassed at the remark. Co-presenter Amanda Holden quickly chipped in kindly, saying: 'It's a good one to have', regarding his nickname. Viewers reacted with amusement at the moment, which one person hailed 'the greatest Tourette's TV moment of all time'. During the interview, the couple discussed how after developing Tourette's syndrome aged 21, Miss Grant worried that she'd never find a boyfriend who would put up with her inappropriate outbursts. But months later, she found the perfect match in her deaf partner Jordan, who simply switches off his hearing aid whenever she has a series of loud tics. She told Phillip and Amanda: 'The night before I’d been out drinking, so I went to the shop to get a  sandwich. 'I looked at a sandwich and I started shouting "marshmallow" and I thought "this is a dodgy hangover". 'I picked up a bag of crisps and I started shouting "marshmallow" and "Japan". I thought "what the hell's going on?" By the next day, Miss Grant, who had lived a totally normal life until this point, was involuntarily yelling swear words and racial insults and began lashing out with kicks and punches. Ellie Grant, 22, was appearing on the show to discuss how she suddenly developed Tourette's syndrome - and how she had found love with fiance Jordan - who is deaf . But she left presenter Phillip Schofield bemused and speechless after blurting out 'silver fox' - his nickname - at him mid-interview . Co-presenter Amanda Holden quickly chipped in, kindly rubbing him on the back, saying: 'It's a good one to have', regarding his nickname . Miss Grant, from Ironville, Nottinghamshire, was working as a community support worker when she started 'ticking' while queuing in a supermarket last January. She found herself unable to stop blurting out 'marshmallow' and immediately called her doctor for an appointment after she ran back to her car in shame. By the time she saw her GP the next day, her ticks had already increased ten-fold, and she began shouting words like 'n****r' - as well as 'Japan' and 'I'm a t**t'. 'My arms were smacking my face as I was sat there in the waiting room,' she recalled. 'I was being horrible to everyone. There were a lot of swear words, and stuff like 'carry on looking at me and I'll take you to Japan'. It came on so quickly.' Miss Grant was told she should see a specialist and, after MRI scans confirmed she was not suffering from brain damage, the family discovered she had Tourette's. Miss Grant went on to develop OCD and anxiety, and gave up work as well as cutting herself off from friends and family and shutting herself away in her room. Viewers took to Twitter to express their amusement at the situation . But in late February last year, her aunt Annie took her out for a drink at her local pub, where she bumped into Mr Pettier. Miss Grant said: 'Jordan was in the pub and he was the only person not to look at me. Everyone else was laughing and looking and having conversations about me. 'I thought "why isn't he?". I went outside and he also came out. Then I saw his hearing aid and I started saying "deaf, deaf" - it was a new tick. Tourette's syndrome is a neurological condition affecting the brain and nervous system that causes sufferers to make involuntary noises and movements called tics. Tics can be vocal - such as grunting, coughing or shouting - or physical – such as the jerking of the head or jumping up and down. The exact cause of Tourette's is unknown but it can come on suddenly, usually in children or teenagers, but also in adulthood. It is believed the condition is brought on by a problem with the basal ganglia, which are a group of specialised brain cells located deep inside the brain. It is thought that the problems may be caused by excessive levels of a naturally occurring chemical called dopamine. Another theory is that Tourette’s syndrome may be linked to an infection in which antibodies produced by the body to fight the infection interact with brain tissue, affecting the brain's functioning. 'I was like "oh god, I'm sorry" and he said "I'm deaf, it doesn't matter what you said, I can't hear you". 'It was amazing and we just hit it off straight away.' One of Miss Grant's biggest fears was staying over at his house because her ticks continue through the night - but Mr Pettier immediately put her at ease. 'He said he turned off his hearing aid through the night so he wouldn't be able to hear me at all. I thought "this is amazing'', she said. 'I was keeping my mum up at night, but now the only person I keep up in the night is our dog.' The pair moved in with each other in July and Mr Pettier is now a carer for Miss Grant, who suffers severe physical ticks, as well as her verbal outbursts. Mr Pettier, who has been 97 per cent deaf since contracting meningitis aged five, said: 'Meeting Ellie completed me. Her ticks were never a problem for me - I thought it was cute if I'm being honest. 'I used to get frustrated not being able to hear things properly but we even each other out. 'Things I can't do like phone calls she does, things she can't do like chop food I do. I could never imagine life with out her now. 'As Ellie's mum says we're the 'Undateables' and I wouldn't have it any other way.'
Ellie Grant, 22, was appearing on the show to discuss her condition .
But in the middle of the pre-recorded interview, Miss Grant suddenly suffered a tic - and blurted out 'silver fox' at Phillip, 53 .
'Silver fox' is the nickname of the father-of-two, who smiled, but looked bemused and slightly embarrassed at the remark .
Amused viewers took to Twitter to say how much they enjoyed the clip .