Someone who posts nasty comments about someone they know on Urban Dictionary thinking that it will end up on the site.

Someone who is completely unaware of how unoriginal and lame it is to post negative comments about people they know on Urban Dictionary.
I enjoy editing Urban Dictionary posts but i get frustrated sometimes with the huge amount of lamebrains, twits, and meatheads posting completely useless bullshit. What a waste of my time, their time, and Urban Dictionary's bandwidth.
by CurvedMirror October 24, 2008
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A parody on the radio personality, Rush Limbaugh. Often used in reference to a clone of the same. A very negative assault on ultra-right wing views, as represented by infantile narcissism, indulgence, self-centered shallowness, and lack of meaningful dialog.
Dude, did you hear the new shock jock? Wow, he is a real Lush Lamebrain clone, what a moron.
by Guido1 March 3, 2008
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A real big piece of shit. You want nothing to do with these guys.
Why are you hanging out with those lamebrains, all they do is drink and skate.
by sixtyniningyourmom November 23, 2021
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