Hackopotamus
Someone who stays bad at something even when it's easy to get better.
He could've fixed his broken phone but just let it stay broken. 'I'm a hackopotamus, not a genius.'
She didn't learn how to tie her shoes properly and still says 'I'm a hackopotamus.'
He still eats cereal for dinner every night and says 'That's how I roll, hackopotamus style.'
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