1. a music group consisting of three brothers, Nick, Joe and Kevin. They sing cute songs and wear purity rings.
2. the way all boys should be; the kind of boy a girl wants to be with.
3. mean terms made by the boys that can not reach the Jonas Brother standard because they are stupid and/or jealous and/or ugly
Mike, "The Jonas Brothers are gay."
Katie, "Well maybe if you were more like them I wouldn't have dumped you."