- Badass is defined as something or someone cool or something or someone tough, rebellious or aggressive.
When a person gets a really cool new motorcycle, it might be an example of something described as badass.
- The definition of a badass is someone who is tough, mean, violent or a bit aggressive.
The outlaw Jesse James is an example of a badass.
This man is badass.
(comparative more badass, superlative most badass)
- (US, slang) Having extreme appearance, attitude, or behavior that is considered admirable.
- That tough guy looks badass.