Did you hear the piece on NPR this morning about sleep walking? They interviewed a teenage girl who at one point uttered the sentence "I slept walked." I don't think I have ever heard anything like that before. She not only analyzed "sleep walk" as a verb-verb compound (where I would have called it a noun-verb compound), but she inflected both verbs to make it past tense. Is this a complete one-off, or is this pattern that is more common than I am aware of?
Bob is referring to a quote in "Lack Of Sleep, Genes Can Get Sleepwalkers Up And About", Morning Edition 8/27/2012, where Miranda Kelly says
I usually don't realize when I do it. Like every couple months I'll wake up in an odd place, and realize "Oh, I slept walked."
This is certainly not "a complete one-off". From the web:
[link] Any One Ever Slept Walked While Pregnant?
[link] Have you ever slept walked?
[link] Who here sleepwalks, or has slept walked before?
[link] My brother told me I slept walked into his bedroom and told him "winter is coming" then went back to bed. Impending ice age?
[link] I slept walked to the toilet and woke up pooping. Easily one of the most disorienting events of my life.
On the ChaCha forum, someone asked "Is it sleep walked or slept walked?" The official response: "The answer would be slept walked."
Of course there are plenty of hits for "sleeped walked", and even more for "sleep walked", which I take to be the standard form. But my favorite is the top-rated response on Yahoo! Answers for the question "What is the past tense of 'sleep walk'?" — "Slapped Whelks".