brat

noun

• A child who is regarded as mischievous, unruly, spoiled, or selfish.

  "Get that little brat away from me!"

• A son or daughter (at any age) of an active military service member.

  "an army brat"

• A turbot or flatfish
• A rough cloak or ragged garment
• A coarse kind of apron for keeping the clothes clean; a bib.
• The young of an animal.