spoonerism

noun

1. 首音误置（说话时误把两个单词的首音掉换，常造成滑稽效果）
   a mistake in which you change around the first sounds of two words by mistake when saying them, often with a humorous result, for example well-boiled icicle for well-oiled bicycle

1. (说话时的)首音误置(如将long road 说成 wrong load)
   A spoonerism is a mistake made by a speaker in which the first sounds of two words are changed over, often with a humorous result, for example when someone says 'wrong load' instead of 'long road'.

noun

1. transposition of initial consonants in a pair of words