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The noise you make when you refuse to listen to somebody and drown out their words with your own noise. Usually accompanied by sticking your fingers in your ears or shaking your head.
"We're both adults, right? Well, last night your mom and I were having maritals and she wanted me to try ... "
"I am not listening! La la la la!"
by Coell September 02, 2005
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Nov 27 Word of the Day
A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.
That fucking smooth brain put his shirt on backwards again...

That smooth brain is dumber than a pile of shit.
by Tip Tank May 14, 2011
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2
It's what you say when you've been in your house all weekend studying/working/doingyourstupidf*ckinghomework and on the verge of going literally insane and since you are going so delirious you say random stuff, like lalalala.
Dude: *working on Math* lalalala (and then talking to self) lalalala (and then talking to imaginary friend) lalalala.
by GabGabyGabby January 15, 2012
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3
ELMO'S WORLD
poeple usually say this at random times when bored out of their minds
awkward silence
Erin*:"la-la-lala elmos world..
by la-la-lola July 07, 2009
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