The word "flopper" can refer to a person who is indecisive or inconsistent, or a person who is blundering or clumsy. There are many synonyms for this word, such as ditherer, vacillator, waverer, equivocator, or fence-sitter. These words describe someone who is uncertain or wavering in their decisions or opinions. Other synonyms for "flopper" might include bungler, blunderer, or incompetent, describing someone who has a tendency to make mistakes or errors. Whatever the context, there are many words that can be used instead of "flopper" to describe someone who is indecisive, inconsistent, or clumsy.