A trigger-type liquid ejector, comprising: an ejector main body used to be attached to a container in which liquid is contained; and a nozzle member disposed in front of the ejector main body and provided with an ejection hole that discharges the liquid forward; wherein the ejector main body comprises: a vertical supply pipe extending in an up-and-down direction and used to suck up the liquid contained in the container; an ejection barrel extending forward from the vertical supply pipe, an internal area of the ejection barrel communicating with an internal area of the vertical supply pipe; and a trigger mechanism including a trigger, the trigger extending downward from the ejection barrel and arranged so as to be movable rearward in a state where the trigger receives forward force, and the trigger mechanism being configured to lead the liquid from the internal area of the vertical supply pipe into the ejection barrel in accordance with rearward movement of the trigger and to eject the liquid from the internal area of the ejection barrel toward the ejection hole; and wherein the nozzle member is provided with: a cylinder extending in a front-and-rear direction, an internal area of the cylinder communicating with the internal area of the ejection barrel through a supply hole;_and a communication hole allowing the internal area of the cylinder and the ejection hole to communicate with each other, characterized in that the communication hole is provided in a front wall portion of the cylinder, the nozzle member is provided with a plunger accommodated in the cylinder so as to be movable rearward in a state where the plunger receives forward force, and the plunger is configured to block the communication hole at a most-forward position thereof and to open the communication hole by moving rearward from the most-forward position. an ejector main body used to be attached to a container in which liquid is contained; and a nozzle member disposed in front of the ejector main body and provided with an ejection hole that discharges the liquid forward; wherein the ejector main body comprises: a vertical supply pipe extending in an up-and-down direction and used to suck up the liquid contained in the container; an ejection barrel extending forward from the vertical supply pipe, an internal area of the ejection barrel communicating with an internal area of the vertical supply pipe; and a trigger mechanism including a trigger, the trigger extending downward from the ejection barrel and arranged so as to be movable rearward in a state where the trigger receives forward force, and the trigger mechanism being configured to lead the liquid from the internal area of the vertical supply pipe into the ejection barrel in accordance with rearward movement of the trigger and to eject the liquid from the internal area of the ejection barrel toward the ejection hole; and a vertical supply pipe extending in an up-and-down direction and used to suck up the liquid contained in the container; an ejection barrel extending forward from the vertical supply pipe, an internal area of the ejection barrel communicating with an internal area of the vertical supply pipe; and a trigger mechanism including a trigger, the trigger extending downward from the ejection barrel and arranged so as to be movable rearward in a state where the trigger receives forward force, and the trigger mechanism being configured to lead the liquid from the internal area of the vertical supply pipe into the ejection barrel in accordance with rearward movement of the trigger and to eject the liquid from the internal area of the ejection barrel toward the ejection hole; and wherein the nozzle member is provided with: a cylinder extending in a front-and-rear direction, an internal area of the cylinder communicating with the internal area of the ejection barrel through a supply hole;_and a communication hole allowing the internal area of the cylinder and the ejection hole to communicate with each other, a cylinder extending in a front-and-rear direction, an internal area of the cylinder communicating with the internal area of the ejection barrel through a supply hole;_and a communication hole allowing the internal area of the cylinder and the ejection hole to communicate with each other, characterized in that the communication hole is provided in a front wall portion of the cylinder, the nozzle member is provided with a plunger accommodated in the cylinder so as to be movable rearward in a state where the plunger receives forward force, and the plunger is configured to block the communication hole at a most-forward position thereof and to open the communication hole by moving rearward from the most-forward position.