[], (Noun)

Definitions:
- A hole containing mud or in which mud collects, especially one which forms a defect or obstacle in a road; specifically a hot mud spring.

- A hole at the base of a boiler, condenser, etc., through which sediment can be removed.

- A despised place; a place of filth and squalor.

- A situation or factor that impedes progress or entraps a person.


Phrases:

Origin:
early 18th century. From mud + hole