It means "is awesome." A similar variant is "rock house", which means "are awesome."
Dude, did you hear that track "Ghosts N Stuff?" Deadmau5 rocks house.

After taking a hit from the bong, Rob's imagination was rocking house.
by DaveTheBraveInACave November 29, 2010
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A house (apartment, etc.), that sell rock or crack cocaine. A crack house.
If you want to cop a rock, a rock house is usually better than the street.
by Riba Tuculo December 1, 2004
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Originally, referred to emotionally moving rock concert attendees to states of high enthusiasm. By extension, raising any crowd who share interests -- such as music, politics, or religion -- to a state of high enthusiasm.
The warmup act was lame, but the Stones really rocked the house.

Correct me if I'm wrong, but in her speech last night, Hillary Clinton really rocked the house. -- Barack Obama

That minister really rocked the house.
by John M. Knapp, LMSW August 28, 2008
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similar to "blowing it up," when someone takes a shit that is so potent, it perfumes the entire house.
Selena had to leave the party at the condo because she knew her shit would "rock the house."
by kathydumper August 25, 2009
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To beat an oppenent hands down with out much effort. An undisputed victory. See like it aint no thing
John school house rocked Kevin Arrow in an Email war.
by John Y November 19, 2003
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When you and yo girl are having sex, but you forgot an old grammar lesson, and she makes up a catchy song as she climaxes.
by not-a-cult-leader October 22, 2017
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To undeniably beat something or someone.
Undisputed victory. see like it aint no thing
Very good our rough sex
J-macadocious school house rocked kevin arrow in an email war.
J-macadocious school house rocked his women last night.
by John Y November 19, 2003
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