The unblocker,[1]​ unblocker,[2]​ unblocker, or unblocker,[3]​ also colloquially called sopapa,[4]​ sopapo,[5]​ sucker, chupón, chuclete, chupa or sucker, is a utensil used to unclog pipes through a pressure system generated by manual force applied to a wooden or plastic handle attached at the bottom to a rubber suction cup.[6] It is generally used to clear blockages produced, for example, in drains, which are openings with a smaller diameter than the suction cup.

In toilets and sinks, it is used by covering or inserting the plunger into the hole and pushing it several times until the pipe is unclogged. Toilet plungers have a wooden or plastic stick (sometimes covered with rubber) attached to the bottom (known as a suction cup). In toilet plungers, the stick usually measures 70 to 110 cm long by 4 cm thick and the suction cup measures 15 to 30 cm in diameter; while in sink plungers the stick usually measures 30 to 50 cm long by 3 cm thick and the suction cup measures 10 to 15 cm in diameter.[7]​.