When traveling, why is going to the toilet called singing? Where did it come from?

When traveling, going to the toilet is called "singing", and its source is related to the living habits of ethnic minorities. In ethnic minority residential areas, family toilets are generally built outside the house, and simple shacks are built with thatch, and a pit is dug in the middle, and several boards are laid on it. Because there is no decent door in the toilet, at most, a fence is left unlocked. When the whole family needs to go to the toilet, men, women and children can solve the "exit" problem in this toilet.

The reason why "going to the toilet" is called "singing" is because in some families, it is necessary to turn on the faucet when going to the toilet, and the sound of the faucet is like singing. So if someone goes to the toilet, other family members may joke that they are singing.

This statement may not be applicable to all regions and cultures, but it is still common in some places.