fast-fooder

[ fast-foo-der, fahst- ]
/ ˈfæstˈfu dər, ˈfɑst- /

noun Informal.

Also fast-food·er·y [fast-foo-duh-ree, fahst-] /ˈfæstˈfu də ri, ˈfɑst-/. a restaurant that sells fast food.
a person or company that operates a fast-food business.

Origin of fast-fooder