Food that is eaten mainly in UK Pubs and bars forming part of a bar snack menu. It is mainly eaten by people who have England style tattoos on their person or neck chains which can be purchased from your nearest argos. It is generally eaten all year round but especially in the summer and bank holiday weekends. Yellow food is specifically food that is cooked in oil or is greasy.
Food that is noticeably nice and upscale. Essentially things like steak, lobster, crab, shrimp, cooked or grown with care, pride and attention to detail, and generally speaking way out of average people's realistic budgets on a regular basis, if at all ever. Antonym of foods such as spaghetti-o's, hot dogs, nachos, cup of noodles.
Jeff: How much is your filet mignon with lobster and crabmeat on top?
Server: $100
Jeff: And the merlot?
Server: $50 per glass.
Jeff: I'll take both. Boujee food.
Server: Indeed.