Spoonerisms are named after a real person, the Rev. William Archibald Spooner of Oxford in the U.K., who constantly peppered his sermons and announcements with bloopers like the following:
“The meeting will be halled in the hell below.”
“You hissed my mystery lecture.”
“You’ll have an opportunity to greet our queer old Dean.”
“If you don’t do so, you have very mad banners.”
Thanks to Doris Eder for sending them.