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1.
A secondary school in South County Dublin where wealthy parents pay €20000 a term for their son to become a professional penis.

The students consist mainly of posh wankers who argue about whose daddy has more money. They usually go to school via private helicopter and enjoy extravagant ski holidays in Andorra on bank holiday weekends. They are often seen trying to act hard despite the fact that they're driving around in their daddy's Range Rover.

A noticeable characteristic of a Blackrock student is that they seem to be oblivious to the fact that they are absolute saps.
John: I'm going to walk over there and kick the shit out those four guys, simply because they go to Blackrock College.

James: Please do, but beware, their dad will most likely sue you.
by sogladidontgotoblackrock February 17, 2011