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A loud, ridiculous noise some people make when they think they’re fancy. It can go on forever and is usually accompanied by bad decisions.
At my cousin’s wedding, the whole table started Haa Laa Laa Laa Laa-ing like they were in a commercial. I wanted to punch them all.
My mom does it every time she sees my dad’s new haircut. It’s like a punishment.
My teacher started Haa Laa Laa Laa Laa-ing during math class. I got a zero for laughing.