Another such word is geoduck, which is pronounced "gooey duck"; a less violently dissonant, but still unpredictable, spelling is distelfink, which according to Merriam-Webster's is pronounced DISH-tlfink it's from Pennsylvania Dutch dischdelfink 'goldfinch', although the AHD gives the normalized DIST-lfink.    From Wordnik.com.  [languagehat.com: ENGLISH SPELLING.] Reference

If you stole someone's five-foot good luck distelfink, the Pennsylvania Dutch would like to speak.    From Wordnik.com.  [Latest News - UPI.com] Reference

Hey there distelfink!.    From Wordnik.com.  [Mandolin Cafe News] Reference