tumbled-in gable

straight-line gable

A term descriptive of a parapeted end gable, the face of which rises above the roof line; the edge of the parapet forms a straight line at a steep pitch with respect to the horizontal; especially found in Dutch Colonial architecture and Jacobethan architecture; occasionally called a straight-edge gable.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.