Davies spat Mr Coghill's tongue on the floor, the court heard
A woman who bit off her boyfriend's tongue in a drunken birthday kiss has been jailed for three years.
Tracy Davies, 40, and Mark Coghill had drunk two bottles of vodka at his flat in Newcastle, in October, when she asked him for a "smoochy kiss".
She then became upset, bit off a third of his tongue and spat it on the floor, the city's crown court heard.
Davies, who was convicted of grievous bodily harm earlier this month, acted in an "animal fashion", the judge said.
During her trial, the court heard the couple were celebrating Mr Coghill's birthday at his Jesmond flat when Davies grew upset because she was not pregnant.
As Mr Coghill, 45, moved to comfort her, she asked him to kiss her, the jury was told.
But she soon turned into a "massive monster", Mr Coghill said, biting down hard on his tongue.
He screamed in pain and tapped her on the head in a bid to make her release him.
Instead she chewed through his tongue, and spat it out on the floor.
Sentencing her, Judge John Evans said Davies had acted in an "animal fashion" and said Mr Coghill's injury was "truly appalling".
He said: "Thankfully people biting other people's tongues off is a fairly unusual experience.
"These courts have had plenty of experience of people biting noses off a person, or ears, or parts of noses and parts of ears, but in my experience, biting a tongue off in this fashion is unique."
He said Davies had shown no remorse for her crime, but acknowledged she was not a danger to society at large.
"I dare say Mr Coghill living as he must do for the rest of his life without two thirds of his tongue will continue to regard you as dangerous," he told her.
"He has by the loss of his tongue experienced a considerable loss of taste, and he feels the disfigurement very keenly."
The piece of tongue was recovered but the risk of infection was too great to risk re-attaching it, doctors at Newcastle General Hospital said.
Davies was convicted of grievous bodily harm but cleared of the same charge with intent on 10 March.
Her barrister, Carl Gumsley, said alcohol was "the real problem" for Davies, and both she and Mr Coghill were "truly sad individuals in a wholly inappropriate relationship".
"This was a bizarre injury and a somewhat bizarre case," he said.
"We have a picture of two truly sad individuals, both clearly alcohol dependent, both grasping at each other in a wholly unsatisfactory relationship."