A Sydney man has pleaded guilty to his part in a bizarre spat over chicken McNuggets, which made headlines around the world.

Kole Olsen fronted Hornsby Local Court on one count of drink driving after recording a blood alcohol level of 0.175 in a McDonald's car park earlier this month.

The 30-year-old was arrested by police after falling fowl of the law, all because chicken nuggets weren't on the McDonald's breakfast menu.

Kole Olsen, pictured outside Hornsby Local Court today, was so drunk he couldn't remember what he'd ordered. Picture: 9News

The court heard that after a night of partying, Olsen ordered 200 chicken McNuggets only to be told they weren't available, to which he responded "I want my f***ing nuggets... I'm gonna f*** you up".

The IT worker, who also claimed in court to be vegan, then started honking his horn and drove four laps of the drive through lane in protest, and then ordered 200 hash browns instead.

He paid $230 for the meal, but continued to abuse staff who eventually locked the restaurant doors out of fear and refused to serve him.

Olsen then demanded a refund, but was so drunk that he couldn't remember what he ordered so asked to be reimbursed for 200 large fries and 200 Big Macs.

Kole Olsen's angry reaction after being refused the McNuggets led staff to call police.

Police were called to the Thornleigh McDonald's by worried staff, and found Olsen drunk at the wheel in the car park.

This morning he entered a plea of guilty on charge of high range drink driving, with the court hearing he already has a number of alcohol related prior offences.