French phrase used in food service. Means to serve an item featuring its juice (jus). 1) a powder compound that is combined with water. Whenever said material is combined with liquid, a very tasty, salty brand new substance is created. You'll dip food to the brand new material to enhance the flavor for the solid meals. Recommended solid foods: ham sandwich, carrot, strawberry, dead babies2) An exclamation of frustration towards a Jewish individual.