Food that is prepared and cooked by vendors on the streets. Some street food are awful and unsanitary, while others serve really amazing food. It really all depends on where you're from.
- If you live in a heavily populated country (e.g. China, India, Brazil) then most street food is low-grade stuff sold in -shoddy food carts by a scruffy-looking old man that you'd likely avoid. Of course there are exceptions.
- If you live in the middle-east, then you will experience some of the most authentic street food that's
representative of the culture there.
- If you live elsewhere in the world, mainly first world countries, then you will love street food
without a doubt. Here in Canada we have BeaverTails which sells fried dough pastries; they are seriously good. Many street food here are from food trucks, usually at a special event or carnival, and caters to the foodies. YMMV, but I love street food of any kind, even commonplace hot dog stands.
For the most part, street food is some pretty good stuff that you'd eat on rare/unique occasions.