The Interpretation of Dreams by Sigmund Freud Chapter 2 Page 9

I can build up a person by borrowing one feature from one person and one from another, or by giving to the form of one the name of another in my dream. I can also visualize one person, but place him in a position which has occurred to another. There is a meaning in all these cases when different persons are amalgamated into one substitute. Such cases denote an “and,” a “just like,” a comparison of the original person from a certain point of view, a comparison which can be also realized in the dream itself. As a rule, however, the identity of the blended persons is only discoverable by analysis, and is only indicated in the dream content by the formation of the “combined” person.

The same diversity in their ways of formation and the same rules for its solution hold good also for the