Bog

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 followed by down):
We were bogged down by overwork.
bog in, Australian Slang. to eat heartily and ravenously.
a lavatory; bathroom.
Contemporary Examples

The Ballad of Johnny France Richard Ben Cramer January 11, 2014
The Ugly Truth About Financial-Regulatory Reform Harvey Pitt July 13, 2010
Jamaica, We Have a Dogsled Team Allen St. John March 24, 2014
Congo’s Feminist Fight Linda Bird Francke July 6, 2010

Historical Examples

Historic Waterways–Six Hundred Miles of Canoeing Down the Rock, Fox, and Wisconsin Rivers Reuben Gold Thwaites
Tales And Novels, Volume 4 (of 10) Maria Edgeworth
Lives of the Engineers Samuel Smiles
Tales And Novels, Volume 8 (of 10) Maria Edgeworth
Round the Block John Bell Bouton
Lord Kilgobbin Charles Lever

noun
wet spongy ground consisting of decomposing vegetation, which ultimately forms peat
an area of such ground
a place or thing that prevents or slows progress or improvement
a slang word for lavatory (sense 1)
(Austral, slang) the act or an instance of defecating
n.
v.
bog
(bôg)
An area of wet, spongy ground consisting mainly of decayed or decaying peat moss (sphagnum) and other vegetation. Bogs form as the dead vegetation sinks to the bottom of a lake or pond, where it decays slowly to form peat. Peat bogs are important to global ecology, since the undecayed peat moss stores large amounts of carbon that would otherwise be released back into the atmosphere. Global warming may accelerate decay in peat bogs and release more carbon dioxide, which in turn may cause further warming.
El Dorado International Airport (Bogotá, Colombia)