The state of a gentleman's penis when he is sexually excited almost to the point of spontaneous ejaculation.
Come on darlin', get yer kecks off, I'm rock hard!
by Richard Rockard June 22, 2006
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Intransitive verb. 1)The specific ability to perform adeptly a style of rock music which includes guitars, drums, and a blues influence. 2)To surpass all contenders in excellence, ability, or fame. 3) To render all viewers speechless at one's excellence, ability, or fame.
Music. "The vintage vinyl of Bad Company that my dad gave me rocks hard."
Excellence. "Congratulations on that summa cum laude! You really rock hard, Michelle!"
Ability. "Our band really rocked hard last night, didn't it?"
Fame. "The Beatles rocked hard."
by Rainwater September 28, 2007
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Tyler got rock hard when his fuck buddy for the week started to rub his tip of his dick.
by vkfhdafhEWJ;FEWKJ January 16, 2008
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"Rock hard, rock often" was a saying invented by Josh Pierce in early 2006. In an attempt to gain popularity to the saying Josh instructed all the students at Oneighty//gb to spread it around their schools. It worked. By March of 2006 this phrase was unstoppable, it infiltrated all of High School society in greater Green Bay, and continues to spread rapidly. We could be looking at an all out epidemic.

Spread the word.
Brian the stud: "Cya later Josh"
Josh: "Rock hard, rock often man"

Ryan: "Dude, let's go golfing"
Josh: "Rock hard, rock often"

Very excited senior: "I GOT EXCEPTED INTO MIT!"
Josh: "ROCK HARD, ROCK OFTEN!"
by Brian Henderson April 24, 2006
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