“As a child, we had them for particularly rainy days walking to school when, because of their nature, we could splash in puddles with impunity and squelch our way through mucky grass verges.”
“After the heavy rain, the hiking trail became mucky, making it difficult to navigate through the wet and muddy earth.”
“My lesson was inside, because the outdoor arena was too mucky from the sleet.”
muckerish
(dated) Characteristic of a mucker; low and vulgar.