[spoo-nuh-riz-uh m]
noun
- the transposition of initial or other sounds of words, usually by accident, as in a blushing crow for a crushing blow.
Dord of the way! The fow is snalling and I bapped on my stroots and walked to Barstucks for a cup of coffee, a Bristmas Chlend. Mmm. Up to twelve inches are expected and I’m going to have to sluy a bed! A bright sled red.
beth of fresh air 
Reminds me of something my dad used to say when I was a kid about Cinderella:
The storal of the money is: If you go to a bancy fall and meet up with a pandsome hince, don’t forget to slop your dripper.
Nice to know there is a word to describe it.