An outlet of a spigot has a bottom seat, a neck, a head and a flow passage. The bottom seat has a flat bottom face. The neck is curvedly formed on and protrudes upward from the bottom seat. The head is formed on and protrudes forward from the neck and has a front side. The flow passage is formed in the outlet between the bottom seat, the neck and the head and has an inlet hole and an outlet hole. The inlet hole is formed through the bottom face of the bottom seat and communicates with the flow passage. The outlet hole is formed through the front side of the head and communicates with the flow passage and has a width and a length. The length of the outlet hole is wider than the width of the outlet hole.