The lawyer representing two of four Brisbane men charged with raping a male friend with a beer bottle says charges against the group should be dropped because the incident was a silly prank.

The men stand accused of filming the alleged rape and posting the video on social media, after their friend had passed out drunk during an Australia Day party in Kedron this year.

One of four men accused of raping their friend with a beer bottle on Australia Day. Credit:Fairfax Media

Lawyer Eugene O'Sullivan told the Brisbane Magistrates Court on Monday the incident was not actually rape, and was "a Jackass-type of thing", referencing the US reality series in which dangerous and crude pranks are filmed.

"There's no rape. It's a simulated rape, with video taken and put on Facebook," he said.