but·tock /ˈbʌtək ||(ˌ)tɑk/
 屁股的半邊肉,屁股,船尾(vt.)背摔


 but·tock /ˈbətək/ 名詞
 臀


 But·tock n.
 1. The part at the back of the hip, which, in man, forms one of the rounded protuberances on which he sits; the rump.  Often used in the plural -- see buttocks.
 Syn: -- cheek.
 2. Naut. The convexity of a ship behind, under the stern.

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 buttock
      n : either of the two large fleshy masses of muscular tissue
          that form the human rump [syn: cheek]