It's possible that you're thinking of:
* "For who laid the chunk?" This could refer to someone who left a large, unidentifiable object behind, perhaps a chunk of concrete or a piece of food.
* "For who laid the groundwork?" This refers to someone who did the initial preparations or foundational work for a project or endeavor.
* "Who laid the chunk?" This would be asking who was responsible for leaving the large, unidentifiable object.
If you could provide more context, I might be able to help you understand what you're looking for!