Sweating Sod
The expression combines two colloquial terms. Sweating means perspiring heavily due to intense physical activity or extreme heat. Sod is mildly offensive or informal term for man, or a difficult situation or task. In agriculture and landscaping sod means upper layer of soil held by the roots of grass. In slang it appears in expressions like, "I was sweating like a sod", denoting extreme physical fatigue, hard labour or fatigue. In literary context, in classical literature, it describe a damp landscape or that exudes moisture. It can also be called a wetland. In the novei Far From The Madding Crowd (Chapter 44) the terms are used in this sense.