My uncle used to tell me that duck sauce was made from duck lips. When I protested that ducks didn't have lips, he told me it was because they were all cut off to make the sauce.
A childhood belief about nasty food

others believed things like this
- I always thought that duck sauce (from chinese restaurants) was duck poop.
— emily - My Dad told me that Soy Sauce was made of grasshopper spit! I didn't eat it for YEARS!— TawnyKat
- i thought that "aromatic" duck was actually "asthmatic" duck.
poor thing...— rachael - When I was little I believed that when I put lipstick on my lips, the lips grew.— Alba Águila Castelló
- I used to think that Tabasco Sauce contained tobacco, and therefore was actually "tobacco sauce."
Anon - Whenever I was upstairs on a bus, I didn't believe that it would fit under the bridge so I used to duck. — Dave, Lancashire