adobe
They can come out of the water and skip on mud, that's why they are called mud skippers.
A mud flap.
Possibly originated in Mississippi and started being called Mississippi mud pie/cake because it looked like the thick mud that was along the banks of the Mississippi river, in later years as "Mud Pie/cake" became more main stream it just got called Mud Cake.
Mud Phobia is the phobia (fear) of mud. Its called mysophobia, myso meaning mud and phobia meaning fear.
A flat topped mud brick tomb is called a mastaba.
Applying a mudpack is called a daub. A coat or cover of plaster, clay or mud.
in a house, the mud room would be called le vestibule or l'entrée. In a sports installation, the mud room is called 'le vestiaire'
Adobe, if you look under Adobe Mud Bricks...
A clod
A landslide is called a mud flow when it is raining when it happens which causes the dirt to turn to mud, or when a landslide happens at a muddy area so instead of dirt, its mostly mud.
The sound of a footstep on mud is commonly referred to as a squelch or a squish.
Lahar