As nouns the difference between scarf and feast
is that
scarf is a long, often knitted, garment worn around the neck or
scarf can be a type of joint in woodworking or
scarf can be (scotland) a cormorant while
feast is a very large meal, often of a ceremonial nature.
As verbs the difference between scarf and feast
is that
scarf is to throw on loosely; to put on like a scarf or
scarf can be to shape by grinding or
scarf can be (transitive|us|slang) to eat very quickly while
feast is to partake in a , or large meal.