The word,
marriage, most famously mispronounced by the Impressive Clergyman from the movie, The Princess Bride. The Clergyman, played by
Peter Cook, could not pronounce his r's or l's.
"Mawidge is wot bwings us togeder tooday." - The Princess Bride
"Mawidge, that bwessed awangment, that dweam wifin a dweam... And
wuv, tru
wuv,
will fowow you foweva...So tweasure your wuv." - The Princess Bride