What is the definition of Aaargh?

"Aaargh" is a delightfully exasperated sigh, like when your favorite karaoke machine just decided to go silent mid-song. It's the universal language of frustration that somehow manages to convey more than a dozen emotions in one mighty gust.

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Here's an unsettling example sentence: "As I stared at the pixelated mess of my own reflection, aaargh erupted from me, a digital scream of disillusionment that would make a cyborg's existential crisis weep."