Informal A stupid mistake; a blunder: "the petty talking points, peripheral issues, tactical boo-boos, and small-bore scandals that regularly intrude on campaigns” ( New Republic).
Informal A slight physical injury, such as a scratch.
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.