The idioms about the washboard water gun are as follows:

In the long history of our country, idioms are the treasures of Chinese culture. They are concise and meaningful. Many idioms are derived from ancient historical stories, fables and allusions. The question to be answered today is: "Guess idioms by painting a gun with money".

First of all, we see "shit money". Together, these two words may describe a less serious behavior. Then there is "painting a gun". Painting a gun usually refers to imitating a gun with gestures, which may imply a threat. Finally, "guessing idioms" tells us that we need to find an idiom to summarize the previous description.

first of all, we should understand the meaning and origin of idioms. Idiom is a commonly used fixed phrases in Chinese, which is usually composed of four Chinese characters and has certain cultural connotations and moral implications. Many of them are derived from ancient historical stories, fables and allusions, and they are a unique expression in Chinese.

Next, let's analyze the meaning of the phrase "shit money draws a gun". Literally, this phrase seems to have no clear meaning. However, we can extract key words from it, such as "shit", "money", "painting" and "gun", and then combine the common meanings of idioms to speculate. According to these keywords, we can guess that this phrase may be related to idioms such as "spending money like running water" or "not worth the loss".

After analysis, we can draw the idiom: "Spending money is like running water". This idiom means spending money very quickly, just like running water. It is used to describe a person who spends money lavishly and without restraint. This idiom has something to do with the phrase "painting a gun with shit money", because "painting a gun" can be understood as "spending money", and "shit money" means that this way of spending money is unwise.

finally, let's summarize the solution process. Through the analysis of the phrase "waste money to draw a gun", we extract the key words and combine the common meanings of idioms to infer that the related idiom is "spend money like water" This idiom describes a person who spends money very quickly and without restraint.