SPOONERISM
- a transposition of usually initial sounds of two or more words as in tons of soil for sons of toil.
- a transposition of initial sounds of spoken words, eg 'shoving leopard' for 'loving shepherd' [n -S]
- A verbal error in which a speaker accidentally transposes the initial sounds or letters of two or more words, often to humorous effect, as in the sentence you have hissed the mystery lectures, accidentally spoken instead of the intended sentence you have missed the history lectures