Every year,more and more artists came to town during this festival to perform outside,or on the "fringe,"

VOA: special.2009.08.05

That may be a little bit more on the fringe.

这可能就颇有争议了。

普林斯顿公开课 - 人性课程节选

Something that is on the "fringe" means it is on the edge, outside established boundaries.

VOA: special.2009.08.05