To behave inconsistently; to vacillate or to waver, as between extremes of opinion or emotion.
To deliberately act evasively or prolong a discussion in order to gain time or postpone a decision, sometimes so that a compromise can be reached or simply to make a conversation more temperate; to stall for time.
To apply a temporary piece of dental work that will later be removed.
To discuss, to negotiate; to reach a compromise.