1. suggesting or leading towards
not sure what you're driving at
This is a phrasal verb used to ask someone what they are implying or saying indirectly. ‘What were you driving at with that comment earlier?’ ‘I felt he was driving at something else when he mentioned the artwork earlier.’ It is an expression you are more likely to hear in a formal setting. Similar in meaning to 'what are you getting at?' or 'what are you implying?'.