what (someone) is driving at

the meaning of what someone is saying.

I didn't answer her because I wasn't sure what she was driving at.

• is anyone's guess
• is at disposal
• is at your disposal
• is bag
• is beyond me
• I shudder to think
• is in business
• is not a bed of roses
• I stand corrected
• is that a fact
• is your bag
• I take my hat off to
• I take my hat off to someone
• I take the Fifth
• I take the Fifth Amendment
• it beats me
• it doesn't hurt to
• it doesn't hurt to do something
• it doesn't take a rocket scientist
• it doesn't take a rocket scientist to
• it doesn't take a rocket scientist to do something
• I tell you
• it escapes
• it escapes me
• It goes without saying.