Abstract: A portable eating utensil includes first and second shells, which is docked to accommodate an eating utensil. The first shell includes a first slot and a first protrusion on a side facing the second shell. The second shell includes a movable buckle. The buckle includes a second slot and a second protrusion on a side facing the first shell. When the first and second shells are docked, the buckle is moved to an unlocked position, such that the first protrusion leaves the second slot, the second protrusion leaves the first slot, and the first protrusion leaves the second protrusion to unlock the first and second shells. The buckle is moved to a locked position, such that the first protrusion is embedded into the second slot, the second protrusion is embedded into the first slot, and the first and second protrusions prop against to fix the first and second shells.