eyes out on stalks
(one's) eyes are out on stalks
1. One is looking at someone in a way that indicates sexual interest. Of course he likes you—his eyes are out on stalks every time he sees you!
2. One is looking at something with wonder or awe. My brother loves superhero movies, so his eyes will definitely be out on stalks when he sees the trailer for this one.
eyes out on stalksfull of eager curiosity or amazement. informal
1999 Escape This breathtaking graphics accelerator takes 3D game play on PCI systems to a whole new dimension of excitement with imagery so realistic your eyes will be out on stalks.