A woman was known as 'Slasher' by the man she murdered in her Sheffield flat, a court heard.
Craig Wild had given Alison Moss the nickname after she attacked him with a knife, on one occasion leaving him with a gash to the head, jurors were told today.
Mr Wild, aged 49, was found stabbed to death at Ms Moss's home in Fox Walk, Walkley, on August 25 last year.
Moss, aged 47, denies murder and unlawful wounding but has admitted wounding with intent to cause grievous bodily harm.
A second defendant, David Webster, aged 50, of Gibraltar Building in Shalesmoor, has admitted murder.
Paul Buxton told jurors at Sheffield Crown Court on Tuesday (February 7) that he had known Mr Wild since they were children, and he recounted a conversation he said took place around seven to 10 days before his friend's death.
"He said to me 'guess what, she came round last night, Slasher, with her boyfriend who's just got out of a life sentence," said Mr Buxton.
"He said she looked into Craig's eyes and said you didn't have sex with me did you, Craig? I said to Craig 'keep away from them'."
When asked why his friend had referred to Moss as 'Slasher', Mr Buxton said: "It was because she tried to slash him a couple of times with a knife. He said she went for him on the neck."
Mr Buxton said his friend had not reported any of the attacks to police and had appeared to be nervous of Webster, who was Moss' boyfriend at the time of the murder.
Lee Wild told the court he had seen his brother Craig around May last year with a cut about two inches long above his right ear.
When he asked what happened, he said Craig told him 'it's that idiot I'm seeing', referring to Moss.
"He said they'd been drinking and she just went on one, as he put it, and struck him with a knife," added Lee.
PC Stuart Oaks told how he had attended the ground floor flat on August 25, following reports of a disturbance at the property.
He said he heard whispering from inside the walls but Moss had not appeared until he announced he would break down the door if no one let him in.
He said Moss had opened the door and come out, saying 'no comment, no comment, don't go in there'.
Both she and Webster had been 'agitated' and appeared to be under the influence of drugs or alcohol, he told the court.
PC Oaks arrested Webster that evening after Mr Wild's body was found inside the flat by another officer. He told the court the defendant's hands had been covered in blood as he went to apply the handcuffs.
Gail Jones, who could see Moss' flat from her parents' house, told how Moss and Webster had argued so often it was 'like the Jeremy Kyle show'.
On the night of Mr Wild's murder, she remembered hearing a banging sound coming from the property and briefly seeing a pair of hands pressed up against the back window but no face.
The trial continues.
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