An expression to scream out at someone that irritates you or to just generally bring attention to yourself or to annoy other people.
The driver on the bus stopped suddenly, causing me to fly forward, so I yelled out Blehhhh!!
by aaronCali805 August 4, 2005
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The emotion or feeling of just complete and totally laziness, and not really caring.
Girl 1: Blehhh I'm so done with life right now.
Girl 2: same.
by Average Fandom Obsessed Chick November 10, 2015
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