Definition of "flak" []

• Antiaircraft artillery. (noun)
• The bursting shells fired from such artillery. (noun)
• Informal Excessive or abusive criticism. (noun)
• Informal Dissension; opposition. (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.

• "So whenever you hear some label flak claiming 98% of the bands they sign lose money for the company, substitute the phrase "just don't earn enough" for the word "lose.""
• "I will note also that she has taken some flak from the left because “too many” white males were hired."
• "He will always face flak from the minority of introducing romance to Doctor Who."