Squelchy describes ground that is so soft and wet that your foot sinks a little and comes up with a wet sucking sound — mud after heavy rain, a marshy field, a rice paddy edge, wet grass in a park. The word carries both things at once: the feeling under your shoe and the noise. That noise is really the point. Squelch is one of those English words that imitates a sound, and squelchy is the adjective, so the word is almost as much about your ears as your feet. It is informal and everyday — you would use it talking about a walk, not in a report. It stretches a little to other soft wet things: squelchy shoes and squelchy socks are ones full of water that make the noise when you walk, and people sometimes use it for wet food that is unpleasantly soft. British speakers use it far more than American ones, who may not know it at all.

（地面）濕軟的、爛泥般的、踩起來會發出「唧咕」聲的；泥濘