A couple years ago my brother was singing the AC/DC song "Dirty Deeds" and instead of saying, dirty deeds and there done dirt cheap, he said, dirty deeds and the dunder jig.
A childhood belief about misheard lyrics

others believed things like this
- a friend thought that the song "dirty deeds done dirt cheap" was saying "dirty deeds dunderchief"— dubs
- when i was younger i thought ac/dc's dirty deeds (done dirt cheap), was dirty knees and the thunder cheeks.— S
- When I was younger, I thought my brother kept eating my dirty socks, and that's why his feet smelled.— Kail
- I used to believe that toilets would open and swallow you up because they got dirty!!— swallowing toilet
- i used to believe that the "coin wash" was to clean my dirty pennies.— rmutt
- When I was little, I thought that Water Towers were full of dirty laundry. Why? I dont know.Anon