I thought that "peameal bacon" was actually "female bacon" and that "Hollandaise sauce" was "Holiday sauce" 'cause you only have it on holidays.
A childhood belief about general

others believed things like this
- I used to think that Tabasco Sauce contained tobacco, and therefore was actually "tobacco sauce."
Anon - when i was little i thought pigs ate only tomatoes because bacon and ham was red when cooked.Anon
- When i was little, i thought that pig latin came from pigs. I was so frightned to eat bacon afterwords :S— Juber
- I thought until fairly recently that bacon came from the skin of a pig and that's why it was so thin— Nate
- When I was very little, I used to believe that bacon came from the tail of a pig because it was curly!!— Audrey
- My dad used to tell me that "smoked" bacon came from pigs that had been fed on a diet of kippers !!!— Tony . Newcastle on Tyne