I used to believe Row Row Row Your Boat was 'Row row row your boat gently down the stream. Merrily merrily merrily merrily life is butter dream.' Then I realized I was completely wrong a few year ago.
A childhood belief about misheard lyrics

others believed things like this
- row row row your boat gently down the stream...merrily merrily merrily merrily life's a butter bean.— bleeslady
- I used to believe that the last line of Row Row Row Your Boat was 'Life is butter dream'.— Mindless Misfit
- I used to think that life was all a dream and one day i would wake up like a 75 year old woman.( who knows?)— 8 with wrinkles
- My mother told me if I ate too much butter I'd get worms. I didn't eat too much butter...— Dicky
- I used to think life was a dream and I was in heavenAnon
- I thought that life is a dream and when you die you wake up (maybe it's true who knows?)— Naos