1. past tense of muck; to make dirty with mud, dirt, or filth
2. to remove muck or waste material from a place
3. to ruin or spoil something
Usage: informal

Examples

• The horses mucked up the clean stalls with mud from outside.
• We mucked out the barn every morning before feeding the animals.
• The construction workers mucked their boots walking through the wet cement.
• She mucked up the recipe by adding too much salt.
• They mucked the stable floors with fresh straw after cleaning.
• The rain mucked the freshly washed car.
• He mucked around with the engine and made it worse.