Definition of "badass" []

• A mean-tempered or belligerent person. (noun)
• Mean; belligerent. (adjective)

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.

• "I'm trying not to use the term badass so much, but I just can't help it - both of these posters are badass!"
• "Don't take the word "badass" the wrong way; these men were unspeakably violent, often mass murderers and slaveholders."
• "The riveted steel around the image is very nice, gives a nice industrial feel, lends a certain badass gravitas."