A Hobart DJ accused of headbutting Tony Abbott says the alleged act has nothing to do with marriage equality.
Astro Labe, 38, was on Friday charged with assaulting the former prime minister as he walked along the Hobart waterside to his hotel on Thursday afternoon.
Labe said he spotted Mr Abbott on the street and went over to shake his hand before leaning in for a headbutt.
"I picked up pace and went 'Tony, Tony, can I shake your hand?'," he said.
"Apparently he got a fat lip but he didn't have one this morning."
Labe said he hated Mr Abbott, telling 7 News: "I saw him across the street and never thought I'd get a chance to headbutt that c*** again."
Mr Abbott told reporters he suffered minor injuries and was left shocked by the encounter.
Labe said he was wearing a 'yes' sticker supporting the same-sex marriage campaign but the attempted headbutt was inspired by a general dislike for Mr Abbott and not one issue in particular.
"Coincidentally, some friend had put a sticker on me," he said.
Labe is expected to face court in October.