The term "see stars" refers to the visual experience of seeing bright, twinkling lights or flashes typically after experiencing a blow or impact to the head. It is often used to describe the disorientation or dizziness that can follow getting seriously conked or hit on the head.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Get seriously conked. Explanations are generated by AI and may be inaccurate.