With a free kebab on offer, Jack Mascitelli stripped naked and ran through the streets of Byron Bay at 8.45 in the morning.

The schoolies week prank ended abruptly, when he inadvertently ran "screaming and yelling" towards a group of police officers, who fined him $500 for offensive behaviour.

Jack Mascitelli, who was reprimanded in court for stripping naked to get a free kebab on schoolies. Credit:Facebook

Mr Mascitelli, 18, from Victoria, elected to appear in Downing Centre Local Court in Sydney on Monday to argue against the fine, and was admonished by Deputy Chief Magistrate Chris O'Brien.

"Mr Mascitelli, what a goose. That's what you are," Mr O'Brien said to the teenager, who stood in court wearing a black suit and looking sheepish.