A flatbottom kettle.    From Wordnet, Princeton University. 

On some streets, the water is so deep the only way to get to see them is by flatbottom boat.    From Wordnik.com.  [CNN Transcript Sep 5, 2005] Reference

There is a guy in town who has an entire roll cage on his flatbottom boat with a generator for 20 flood lights.    From Wordnik.com.  [Bowfishing] Reference

Super Stock Racing Association Series championship in 2002, 2006 and 2007 and won titles in various flatbottom championships.    From Wordnik.com.  [Edmonton Sun] Reference

He won the US Super Stock Racing Association Series championship in 2002, 2006 and 2007 and won titles in various flatbottom championships.    From Wordnik.com.  [Taipei Times] Reference

You also see our two kids in the photograph below, same swimming hole, but with the concrete launch for canoes and flatbottom boats now visible.    From Wordnik.com.  [Gypsy Scholar] Reference

Many years ago I knew some brothers from Memphis who would pick some of the coldest, most nasty weather to go out on their little flatbottom to fish for crappie.    From Wordnik.com.  [Big Brass Blog] Reference

Transportation of goods on a lighter (large flatbottom barge used to deliver or unload goods to or from a cargo ship or transport goods over short distances.) lyddite.    From Wordnik.com.  [History of the World War An Authentic Narrative of the World's Greatest War] Reference

There’s no beggary to pay smooth a only coin when you see movies on a documented website and it flatbottom comes with really swift travel and smashing character.    From Wordnik.com.  [Spy Screw | Surveillance] Reference