brat

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A child, especially a spoiled or ill-mannered one.
• noun A child of a career military person.
• noun A bratwurst.

from The Century Dictionary.

• noun A coarse mantle or cloak.
• noun A child's bib or apron.
• noun A clout; a rag.
• noun The film on the surface of some liquids, as on boiled milk when cold.
• noun A child: now used only in contempt: as, “this brat is none of mine,”
• noun “their dirty brats,”
• noun A local English name of the turbot.

from the GNU version of the Collaborative International Dictionary of English.

• noun obsolete A coarse garment or cloak; also, coarse clothing, in general.
• noun Prov. Eng. & Scot. A coarse kind of apron for keeping the clothes clean; a bib.
• noun A child; an offspring; -- formerly used in a good sense, but now usually in a contemptuous sense.
• noun obsolete The young of an animal.
• noun (Mining) A thin bed of coal mixed with pyrites or carbonate of lime.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun mining A thin bed of coal mixed with pyrites or carbonate of lime.
• noun bratwurst
• noun A child (as a pejorative term); offspring.
• noun Now often specifically, a selfish or spoiled child.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a small pork sausage
• noun a very troublesome child