Something that is trying to be hardcore, but it ends up being overused and just ends up looking completely retarded.
1. tYpInG lIkE tHiS iS tArDcOrE
2. Gamertags like "Blaze" and "razor" and "Demon Killer of Twilight 666" and other things like that are tardcore.
3. T-shirts with flaming skulls or tribal designs on them are tardcore, as are tattoos that have a tribal design or a skull.
4. Cars with flame decals are tardcore.
5. People who say "tubular" are tardcore.
All perople who say things like "rad" or "tight" or "righteous" are automatically awesome. And if you disagree, then you are tardcore.