Top of a survey of mispronounced dishes carried out this month among 8,783 [British] customers by takeaway ordering service JustEat.co.uk was Japanese Katsu Curry, which most frequently becomes "Cat Soup Curry" when ordered over the phone.
https://www.nytimes.com/reuters/2011/02/22/world/europe/life-us-britain-food-mistakes.html?ref=global-home
The 12 most common mistakes (with the correct name in brackets) were:
1. Cat Soup Curry (Katsu curry)
2. Kung Fu Chicken (Gung Po Chicken)
3. One tonne soup (Won Ton Soup)
4. Wogan J o s h (Rogan J o s h)
5. Hashish Kebab (Shish Kebab)
6. Porn Crackers (Prawn Crackers)
7. Pillow Rice (Pilau Rice)
8. Beef Jimmy Changa (Beef Chimichanga)
9. Chicken Jal Frenzy (Chicken Jalfrezi)
10. Crispy Acrobatic Duck (Crispy Aromatic Duck)
11. Chicken Ghost (Chicken Gosht)
12. Deep fried crispy man tongue (Deep fried crispy won ton)