A drunken ice addict who stabbed a stranger at a Sydney park - missing his spine by two centimetres - has been jailed for at least one year and four months.
Kyissa Bell, 21, pleaded guilty in Sydney's District Court to reckless wounding in company after stabbing the 16-year-old in Coogee on the evening of October 9, 2015.
In sentencing her on Tuesday, Judge Chris Hoy described the attack as disgraceful, cowardly and unprovoked, saying "a death could have been occasioned by a blow like this".
She previously testified she was using "half an eightball" of ice every day, which cost up to $3000, and had been awake for three to four weeks at the time.
"I was the walking dead," Bell said.
The judge said the victim was with his girlfriend in the playground section, "a well-known venue for young people to meet and socialise".
Bell and a female friend, a juvenile, were "loud, aggressive and obviously drunk", and playing with knives.
The juvenile suggested the victim was laughing at her and held a knife to this face before he pushed her away and she fell over.
Bell then stabbed the victim in the lower back, saying, "That's how we do it in Glebe."
"She immersed herself in the serious end of criminal offending," the judge said.
"Why is it that people have to challenge or flex against those in public places for social occasions, all under the haze of alcohol and/or drugs?
"What were these young women trying to prove?"
The judge accepted Bell was genuinely remorseful, had the love and help of her family, and had good prospects for rehabilitation.
He set a maximum term of three years.