MESSAGES on a mobile phone, believed to be related to the supply of illegal drugs, were the subject of an unusual submission in the Proserpine Magistrate's Court this week.

Michael Joseph Wills was in court on Monday, pleading guilty to charges of supplying cannabis and possessing drug utensils and items used in the commission of crime.

Wills initially came to the attention of police during a recent drug surveillance operation in the Whitsundays, resulting in a search of his Cannonvale home on December 18.

Police prosecutor Elizabeth Smith said a coffee grinder, pair of scissors, two sets of digital scales, water pipe, glass pipe, 'shisha pipe' and cone piece were found. Wills' mobile phone was also seized.

According to Ms Smith, the phone contained messages exchanged between Wills and his father discussing the supply of cannabis for $250 an ounce, with Wills believed to be on-selling it for $100 an ounce more.

She said there were messages from Wills saying he "should be able to move that within a week".

"[And] we're not talking about giving a friend a little bag here - this is [on] a much larger scale," she said.

Defence solicitor Sherrie Meade said Wills had been exposed to drugs from a young age and that as young as 13, he was told to take cannabis to school and sell it.

She said the 30-year-old had actually moved to the Whitsundays to get away from drugs but had since reconciled with his father and that this was just how they would speak.

"I know Your Honour it seems far-fetched... (but) it's just a conversation... there was no cannabis or any drugs found," she said.

Magistrate Haydn Stjernqvist said he had never heard instructions like this before and probably never would again.

"It's just 'drug speak'? (Are you) serious?" he asked. "It's like playing 'I spy'? (Well) they'd better find a new game to play."

Mr Stjernqvist said 2011, when Wills received a $2000 fine for possessing and supplying dangerous drugs, should have been his "apex". On Monday he was placed on probation for 18 months.