A spoonerism is an error in speech or deliberate play on words in which corresponding consonants, vowels, or morphemes are switched (see metathesis). It is named after the Reverend William Archibald Spooner (1844–1930), Warden of New College, Oxford, who was notoriously prone to this tendency. (Taken from wikipedia)
I have loved spoonerisms for a very, very long time. It's where you switch the first letters or vowels of words to come up with different words. Here are a few of mon favorits!
Funk Passion=Punk Fashion
The lord is a shoving leopard (loving shepherd, from William Spooner himself!)
Crooks and Nannies=Nooks and Crannies
Shaking a tower=Taking a Shower (one of my favorites :-D)
See what kinds of spoonerisms you can come up with! I will update this list from time to time :)