BOG

noun

1. An area of decayed vegetation (particularly sphagnum moss) which forms a wet spongy ground too soft for walking; a marsh or swamp.
2. Confusion, difficulty, or any other thing or place that impedes progress in the manner of such areas.
3. The acidic soil of such areas, principally composed of peat; marshland, swampland.

verb

1. (now often with "down") To sink or submerge someone or something into bogland.
2. To prevent or slow someone or something from making progress.
3. (now often with "down") To sink and stick in bogland.