There are several synonyms for the phrase "art a huff". These include being in a bad mood, being disgruntled, being annoyed, being upset, being angry, being vexed, being cross, and being irate. Each of these phrases implies a level of agitation or displeasure that can be seen in a person's behavior or demeanor. Regardless of the specific synonym used, the meaning remains the same: the person is not happy and likely needs some time to cool off before dealing with the situation at hand. It's important to recognize these signs in others and in oneself to prevent situations from escalating and causing further distress.