spoonerism
US /ˈspuːnərɪzəm/
UK /ˈspuːnərɪzəm/

1.
spoonerism
a verbal error in which a speaker accidentally transposes the initial sounds or letters of two or more words, often to humorous effect
:
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The professor was famous for his frequent spoonerisms, like saying 'Our queer old dean' instead of 'Our dear old queen'.
Profesor itu terkenal dengan spoonerism-nya yang sering, seperti mengatakan 'Our queer old dean' alih-alih 'Our dear old queen'.
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The comedian's act included many clever spoonerisms that made the audience laugh.
Pertunjukan komedian itu mencakup banyak spoonerism cerdas yang membuat penonton tertawa.