There are a variety of synonyms for the term "haggle about," all of which refer to negotiating or bargaining over a price or other factor in a transaction. Some similar terms include "bargain," "haggle over," "negotiate," "quibble," "barter," "bicker," "dicker," and "wrangle." Each of these terms expresses a slightly different nuanced approach to the process of reaching an agreement. Bargaining, for example, suggests a mutually beneficial deal, while quibbling implies a more petty or nit-picky negotiating style. Overall, the wide range of synonyms for "haggle about" serves to demonstrate the complex and varied nature of human interaction when it comes to striking deals and making trades.