noun
mush
MUSH/mʌʃ/
A soft, thick mass, especially of cooked grain.
The soaked oats slump from the spoon as soft mush.

Etymology
Mush is a variant of mash, “soft mixture.” It first named porridge made by boiling meal in water or milk, then broadened to other soft, thick masses.
In context
turn the wood to mush the damage was bad enough that we really need to pull the mass out and rebuild