The Big Dictionary of Dreams

by Martha Clarke
The origin of this character (very common in folktales and legends) is found in Saturn, who devoured his children as Cibeles brought them into the world.

If the oneiric ogres frighten you, it means you are hurting those around you and, possibly, yourself. The figure of the ogre also denotes ignorance and weakness of character.

Dream Symbols in The Dream Encyclopedia

by James R. Lewis and Evelyn Dorothy Oliver
An ogre in a dream may symbolize authority issues related to discipline in one’s business or personal life. Alternatively, this symbol may represent being an “ogre” to oneself through constant self-criticism. (See also Monster).

The Complete Guide to Interpreting Your Dreams

by Stearn Robinson - Tom Corbett
Y ou are either contemplating, or indulging in, a dangerous vice or passion if you conjured up imaginary monsters in your dream.

In either case you’ll be doing yourself a real favor if you find a new interest