dead on
Exactly right; perfect. Her impression of the music teacher is dead on—people walking by thought he was in the room with us! I think your insights into the experiment are dead on and will help us improve next time.
dead on
exactly right; on target. That's a good observation, Tiffany. You are dead on. Your criticism is dead on!
dead on
mod. exactly right; on target. That’s a good observation, Tiffany. You are dead on.