"one's ass is grass" meaning in English

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          "ref": "1994, Mark S. Hamm, American Skinheads: The Criminology and Control of Hate Crime, page 209",
          "text": "So if you're white and work for the system, watch your step. Whether you be a system cop, a control judge, or a crooked lawyer, your ass is grass.",
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        {
          "ref": "2005, Renay Jackson, Peanut's Revenge, page 21",
          "text": "\"His ass is grass,\" Rodney stated convincingly. Rodney Gates was a deadly individual who had no qualms about killing, so his statement caused no one to blink an eye.",
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        "One is doomed (used as a threat)."
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        "(US, slang) One is doomed (used as a threat)."
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  "word": "one's ass is grass"
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          "ref": "2005, Renay Jackson, Peanut's Revenge, page 21",
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        "(US, slang) One is doomed (used as a threat)."
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