n.1. a. An area having a wet, spongy, acidic substrate composed chiefly of sphagnum moss and peat in which characteristic shrubs and herbs and sometimes trees usually grow.
b. Any of certain other wetland areas, such as a fen, having a peat substrate. Also called peat bog.
2. An area of soft, naturally waterlogged ground.
3. Chiefly British Slang A restroom or toilet.
v.tr.1. To cause to sink in a bog: The bus got bogged down in the muddy road.
2. To hinder or slow: The project got bogged down in haggling about procedures.