嘎了 is internet/youth slang. Originally Beijing-area dialect for 'to die', it spread on Douyin and Bilibili around 2021 to mean 'broken / ruined / over' for any object or situation. Avoid in formal writing.
mistakes
Don't confuse with 嘎 (gā) meaning 'creak/quack'. In this slang sense, 嘎 is read with third tone (gǎ) - listen for the dip.
