8
80th street, the numbers are shaped like three rocks, the 8 is two rocks and the 0 is one rock.
last time i saw your boy, he was chillin on rock block
by fade away April 23, 2010
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9
To cover the nakedness of some shameless hussy with the smiling visage of Dwayne "The Rock" Johnson.

When the naughty bits of an otherwise NSFW image are covered by a certain image of American wrestler/actor Dwayne "The Rock" Johnson an image is said to be (The) Rock blocked.
Poster 1: starts thread asking for the original of an image of some random actress, whose nudity is covered by an image of The Rock.

Poster 2: provides original image of The Rock wearing a tuxedo at some Hollywood party.

Poster 3: lulz, you got rock blocked!
by FBI van Number 4 December 13, 2012
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10
The act of outperforming a musician or band unexpectedly when the musician or band was expected to be the better act.

The act of using a high level of talent unexpectedly and by contrast of talent level, disrespect a more amateur performer.
When an opening band performs at an amazing level, the headliner can get rockblocked.

Michael was playing a couple of tunes at a party when U2 showed up and played an impromptu gig. U2 are a bunch of rockblockers.
by mikedubb November 17, 2010
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