I get a daily e-mail from Dictionary.com which occasionally proves phonetically/lexically fruitful... (i.e, just plain fun)...
Case in point:
Word of the Day for Sunday March 20, 2005
spoonerism \SPOO-nuh-riz-uhm\, noun:
The transposition of usually initial sounds in a pair of
* We all know what it is to have a half-warmed fish
["half-formed wish"] inside us.
* The Lord is a shoving leopard ["loving shepherd"].
* It is kisstomary to cuss ["customary to kiss"] the bride.
* Is the bean dizzy ["dean busy"]?
* When the boys come back from France, we'll have the hags
flung out ["flags hung out"]!
* Let me sew you to your sheet ["show you to your seat"].
Spoonerism comes from the name of the Rev. William
Archibald Spooner (1844-1930), a kindly but nervous
Anglican clergyman and educationalist. All the above
examples were committed by (or attributed to) him.
Dictionary.com Entry and Pronunciation