Definition
A dustup is a minor fight or argument, often brief and not very serious. It suggests a brief and somewhat messy confrontation, like a sudden squabble. Think of it as a quick scuffle that doesn't escalate into a major conflict. It might involve raised voices and some harsh words, but it usually resolves quickly. It's less intense than a brawl or a feud. Unlike a formal dispute, a dustup is usually spontaneous and unplanned.