Reverend William Archibald is best remembered, not for being head of an Oxford college (1903-1924) but for his supposed habit of transposing letters of words producing misplaced ideas and words. This tendency is commonly used intentionally in humor, especially drunk humor by several cultures. The habit is called as?

Spoonerism, named after Reverend William Archibald Spooner, refers to the accidental (or intentional for humor) transposition of initial letters or sounds between words. Classic examples include A well-boiled icicle instead of A well-oiled bicycle. Malapropism is different - it involves using an incorrect word that sounds similar to the intended word, like dance a flamingo instead of flamenco.