noun
a small hole or tunnel that serves as a shelter or hiding place for rats
-
The company auditors uncovered financial discrepancies in the rathole of expenses.
-
I always end up going down a rathole when I start researching random topics online.
-
He's been wasting his time and money on that rathole of a project.
-
Don't get stuck in a rathole of negative thoughts, try to focus on the positive instead.