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A girl that is so horrible that no words can describe her.
You are the most vapid, whiny, BLAH i've ever met!
by Jojoba Loofah Milktowel July 10, 2008
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23
When uttered in The Demented Cartoon Movie, this word causes one to lose his or her head.
by Baha May 15, 2005
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24
Blah is defined as a belief of complete emptyness in Instant messages like AIM when its really full of emotions that the individual is afraid to realize because they feel that they need to hide their emotions because they dont feel its right to say them at the time; or the fact that they might have hid it from themselves for what they felt was their own good
John: So what do you think about me right now as more than a friend?
Elizabeth: Uhhh; Blah. . .
John: What is that to mean?
Elizabeth: Nothing at all it means its i dont know what it means

Elizabeth loved me the whole time just hid it from herself
by John Wagenaar March 13, 2006
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25
Blah, something that you Google when your bored out of your mind.
Blah the feeling of being bored, depressed, and/or what you text someone when you have nothing to say but don't wanna be rude by ending the conversation. I.E. I'm writing this definition because I have nothing better to do.
by Meinherzbrennt November 27, 2017
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