In the nursery rhyme that goes "Row, row, row your boat, gently down the stream, merrily, merrily, merrily...." I used to think life was a "custard cream" and not "but a dream". I always thought a custard cream life sounded so cool.
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
- There was a custard well in my back gardenAnon
- My mum told me that cold custard (which I hated) was in fact Banana Blancmange. I lapped it up for years.— Chalky
- "Yooce cream, ice bean, we all scream for ice cream!"
This song was always stupid to me.— Shirley B. - My parents told me that when the ice cream van was playing music, it means he's run out of ice cream :(Anon