wet, spongy ground with soil composed mainly of decayed vegetable matter.

an area or stretch of such ground.

to sink in or as if in a bog (often fol. by down )

We were bogged down by overwork.

bog in, Australian Slang . to eat heartily and ravenously.

noun

fen , lowland , marsh , marshland , mire , morass , moss , peat , quag , quagmire , slough , sump , wetlands , muskeg , swampland , wetland , swamp

verb

encumber , hold back , impede , obstruct