I wondered if there were any fruits that could not be used to make your lovely purr like a pussy cat. There is certainly one that can never be considered appropriate and that is the durian fruit from Thailand. Vegetables don't get much of a look in, in the erotic context. There are some odd references to potatoes. Imagine dancing all night long and waist high in buttery potatoes.
Vegetables are seemingly neutral when it comes to song writing.
I better not speculate about the cabbage in Muscovite song contests. Onions also have a limited life span in the romantic world. Not going to be a big seller. Any correlation between these two foods and eroticism are now in short supply. True, meat names can be invoked to create cosiness or strength, e.g., my little lamb or my towering and perspiring bull.