Mr Potts said his clients were guilty of nothing more than arguing over what type of ice-cream they wanted.
"The offence in effect is buying ice-cream in a public place," Mr Potts said.
"The biggest controversy was whether it should be a choc-top or a vanilla ice-cream."
Mr Potts said the anti-association case was the latest of many to be thrown out without proof.
"Not one prosecution has been able to be sustained," he said.
The anti-bikie laws are set to be reviewed by the current Queensland government and Mr Potts is hoping they will be abolished.
"Anti-association laws don't work ... it prevents nothing and saves nobody," he said.
All five men spent more than two weeks in custody following their arrests, including time in solitary confinement, before being granted Supreme Court bail.
Mr Potts said his clients were considering their legal options in regard to possible civil action.
-AAP