C2 noun /ˈspuːnərɪzəm/
spoonerism
espúnarismo
Meaning
A verbal error in which the initial sounds of words are swapped to create a humorous effect.
Example
He made a spoonerism by saying 'queer old dean' instead of 'dear old queen'.
Hizo un espúnarismo al decir 'querido viejo dean' en lugar de 'querida vieja reina'.