Do pregnant women enjoy pickles and ice cream? Linguists from the American Dialect Society have been discussing this recently. They found that the expression pickles and ice cream once referred simply to the conjoining of two unrelated things, sort of the opposite of peas and carrots. Not until the middle of the 20th century did it pertain to cravings, simply because pregnant women go through different nutritional patterns than they would when eating for one. This is part of a complete episode.