As tough, hard, or inflexible as a piece of rock. / (bodybuilding) With muscles developed and toned to a high degree, especially the muscles of the abdomen.

Shaking, swaying or moving back and forth. / (informal) Excellent; great.

present participle of rock

The motion of something that rocks. / The abrading of a copper plate with a rocker, preparatory to mezzotinting. / The motion by which the design on a steel mill is transferred to a copper cylinder.

The Rocky Mountains, a mountain range in North America.

plural of Rocky

(idiomatic) To disturb the status quo or go against rules or conventions, as in an effort to get attention.

A suite of rocks containing a variety of separate strata, with an overall lithology that can be used to interpret the paleoenvironment of deposition over a certain period.

A chair with a curved base which can be gently rocked (swung) back and forth.

(music) Glam rock, a music style popular in the early 1970s.