Online Google Dictionary

rock hard wordnet sense
  1. "Rock Hard" is a song by the Beastie Boys, released by Def Jam Records on 12" in 1985. The song (and the accompanying songs on the 12") features the band's debut rap effort, and it contains samples from the AC/DC song "Back in Black" which was used without obtaining legal permission - thereby ...
  2. Rock Hard is a heavy metal magazine originally released in Germany. It was founded in 1983 by Holger Stratmann and is dedicated to all styles of rock and heavy metal. The magazine has independent offspring with the same name in France, Greece, Italy and Spain.