Learn English idioms with meanings and examples

🌎Region: International 📊Difficulty Level:intermediate

bad to the bone

Very tough, rebellious, or mean—bad in an intimidating “to the core” way (often admiring or playful).

Uses “to the bone” to mean “to the core/through and through.” The phrase became especially popular in modern English via George Thorogood’s 1982 song “Bad to the Bone,” reinforcing the tough-guy image.

Colloquial; can be negative (“mean”) or admiring (“tough/cool”). Often used playfully; avoid in formal contexts.

  • That biker looks bad to the bone, but he’s actually pretty friendly.
  • She’s been bad to the bone since high school—always breaking the rules and loving it.
  • The villain in the movie is bad to the bone, with no hint of remorse.
  • Don’t let the leather jacket fool you; he’s not bad to the bone.
  • The song’s lyrics make him sound bad to the bone, even though it’s mostly an act.

Fixed pattern: “bad to the bone.” Usually predicative (“He’s bad to the bone”) or as a noun phrase (“a bad-to-the-bone biker”). Hyphenate when used attributively.

  • tough
  • hardcore
  • mean
  • wicked
  • badass
  • good to the core
  • sweet-natured
  • gentle
  • kind-hearted