Definition of "low blow" [low blow]

• Sports An illegal blow in boxing that lands below the opponent's waist. (noun)
• An unscrupulous attack; an insult. (noun)

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.