A man accused of plotting terror attacks against left-wing targets in Melbourne claims he was more intent on causing hilarity than harm, as a document he wrote about "building destruction" was meant to be satirical.

Police allege that in 2015 and 2016 Phillip Michael Galea planned attacks against socialist and anarchist organisations and was writing "The Patriot's Cookbook", which would encourage others to initiate terror attacks on left-wing and Muslim targets.

Phillip Galea arriving at the Supreme Court of Victoria on Tuesday. Credit:David Crosling/AAP

Mr Galea, who was part of the right-wing organisation Reclaim Australia, has pleaded not guilty to engaging in acts in preparation or planning for a terrorist act, and attempting to make a document likely to facilitate a terrorist act.

From the Supreme Court witness box on Tuesday, the 35-year-old told his trial a document he wrote – that included a heading "building destruction" – was meant to be a joke.