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1. a state in which all forces are at equilibrium while there is forward momentum without any undue distress

2. an appropriate response to an informal interrogative greeting inquiring as to someone's state of well being when all things in life at the moment are copacetic
1. After the first 3 miles of the marathon I was rockin' steady.

2. Bro: How's it goin' Man?

Man: Rockin' steady Bro.
by Bear Shark June 03, 2010