business adage The full expression is some variation of: "When you are up to your neck in alligators, it's easy to forget that the goal was to drain the swamp." It is easy to be so overcome or preoccupied by various tangential worries, problems, or tasks that one loses sight of the ultimate goal or objective. I've spent so much time dealing with various infrastructure problems for my new business that I've had no time to actually develop our product properly. I guess it's easy to forget, when up to your neck in alligators, that the mission is to drain the swamp.
to cover or deluge someone or something with something. The flood swamped our property with river water. The many orders for their product swamped the small business with too much to do.