The Vietnamese word "ạch" is a noun that means "flump" or "flop." It describes a situation where something or someone falls down suddenly or awkwardly, often in a way that is not graceful. It can be used to convey a sense of clumsiness or a lack of control during the fall.
Understanding the word "ạch" can help you describe moments of clumsiness and failure, both in physical actions and metaphorically in various situations.