Definitions of swamp:

• noun:   low land that is seasonally flooded; has more woody plants than a marsh and better drainage than a bog
• noun:   a situation fraught with difficulties and imponderables

  Example: "He was trapped in a medical swamp"

• verb:   drench or submerge or be drenched or submerged

  Example: "The tsunami swamped every boat in the harbor"

• verb:   fill quickly beyond capacity; as with a liquid
• name:  A surname (very rare: popularity rank in the U.S.: #45222)