What is the name of the "that one" of the toilet? Net: Stir the shit stick

Cold knowledge has increased! What is the name of the one that uses the toilet? This topic sparked discussion in ptt. https://www.shineful.com.tw/ma09.htm ,

The villagers said they wanted their girlfriend to buy Tongle home. The girlfriend really bought a can of plumbing agent "Tongle", but it was not what the original PO wanted. The original PO wanted something. "Tools for toilets", so I asked online what is "that one" called?

A villager posted on PTT, “When I asked my girlfriend to buy Tongle home for me today, she bought a toilet dredge and came back, huh? Generally speaking, doesn’t Tongle refer to this one? Or what’s the name?” There is also a picture attached below. The villagers must know what it is when they see this picture.

It is the tool used to suck the toilet when the toilet is plugged. But what is the name of this tool? The replies from the villagers underneath made people laugh: "to pass through the toilet", "money crying and chopping sword", "laxator", "to suck toilet stool", "to stir up shit" Ah", "Vacuum Attraction", and "Bojiboji", but these names are actually wrong. The correct name should be "C-type water (toilet) device".