A mildly derogatory name for someone who thinks too highly of himself, tries too hard, fails semi-regularly, and is oblivious to all of the above.

Blingdong is much less harsh than "toolbag."
Me: You know that guy who says "Classic!" in response to everything. He's kind of a blingdong.
You: Dude, he's autistic.
Me: I know.
by Kingblingdong February 19, 2010

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