"two-timer" meaning in English

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      "expansion": "From two-time + -er.",
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  "etymology_text": "From two-time + -er.",
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      "form": "two-timers",
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  "lang_code": "en",
  "pos": "noun",
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          "ref": "1972, Donald Fagen, Walter Becker, “Do It Again”, performed by Steely Dan:",
          "text": "When you know she's no high climber / Then you find your only friend / In a room with your two timer / And you're sure you're near the end",
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          "ref": "1991, George Michael, Tony Parsons, Bare, London: Penguin Books, →ISBN, page 129:",
          "text": "So I went out with her for a couple of months but I didn't stop seeing Helen. I thought I was being smart—I had gone from being a total loser to being a two-timer.",
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        "A person who two-times another."
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        {
          "source": "Thesaurus:cuckolder",
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          "word": "cornutor"
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  "etymology_text": "From two-time + -er.",
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      "form": "two-timers",
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        "A person who two-times another."
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  "word": "two-timer"
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