toughie

Noun

 * 1)  Something that is tough, or difficult.
 * His question is a toughie. I might have to do some more research.
 * 1) Someone or something that  is strong and resilient.
 * 2) A tough; Someone or something that acts as a thug or bully.
 * 1) A tough; Someone or something that acts as a thug or bully.
 * 1) A tough; Someone or something that acts as a thug or bully.
 * 1) A tough; Someone or something that acts as a thug or bully.