“轟”的一聲響，還沒來得及看到人臉，一輛后輪巨大的摩托就從身邊呼嘯而過。很多人都經歷過這樣的場景。摩托車俗稱“肉包鐵”。調查顯示，在已發生的交通事故中， 摩托車造成的傷亡系數最高。以至于急診室醫生都將其稱為“捐獻摩托”。

Donorcycle is a combination of organ donor and motorcycle; the term apparently originates from emergency room personnel who often see motorcycle accident victims. It alludes to the high percentage of donated organs that come from motorcyclists.
Donorcycle是由organ donor（器官捐獻者）和motorcycle（摩托車）兩個詞組合而成，最初起源于急診室醫生的說法，他們經常看到摩托車交通事故的受害者。這種說法暗指器官捐獻中很大比例來自摩托車駕駛者。

Inexperienced riders, especially those who have not taken training courses, are more likely to die. Sport bikes, which emergency-room doctors call “donorcycles,” as in organ donation, are more dangerous than their less powerful counterparts.
缺乏經驗的摩托車駕駛者，特別是沒有接受過駕駛訓練的人，更容易因摩托車事故去世。運動摩托（一些急診室醫生稱之為捐獻摩托）比其他車輛更加危險。

例句：

Guess what happens when you ride a donorcycle without a helmet?
不戴頭盔就騎捐獻摩托，猜猜會發生什么？

Get the transplant team ready, we have one more donorcycle casualty arriving.
讓移植小組準備好，還有一位捐獻摩托事故傷者就要到了。

（中國日報網英語點津 yaning）