A group of people, usually teenage girls, from Sweden that acts similar to a fjortis. It's basically an upgraded version of fjortis. These people wear short flowy skirts and use tons of makeup daily. A weird thing they do is rub their knees together in videos such as on TikTok. SBB's like to colour their hair a silver-ish colour and use orange fake tans. They are also famous for their orreknut.
That girl is totally an SBB (Swedish basic bitch)