Top definition
A film that makes a lot of money, but is a bit shit.
Michael Bay: Hey Brett Ratner did you see my new Blockbuster Pearl Harbor?

Brett Ratner: It was a little lackluster. I'd say it was more of a Blockluster.

Michael Bay: Like X-Men: The Last Stand, then. Douche.
by Michael Bay Harbor May 12, 2009
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