The "brother eww" meme is pure gold for anyone who has that one sibling who just crosses the line. It captures that perfect moment of disgust and betrayal when your brother does something so cringey you have to physically recoil. The template usually involves a person dramatically turning away or making a face of pure "eww."
You can use this for any relatable sibling fail, from eating something weird to stealing your fries. It works great for reaction videos or just tagging your own brother with a funny story. The humor comes from the over-the-top disgust that everyone with a sibling instantly understands.