Definition of "swayback" []

• Excessive inward or downward curvature of the spine, especially in a horse. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "I remember, too, a wonderful swayback garden bench painted forest green ... it must've sold by now."
• "I was envious of your smallness, your swayback bum, your simpleness."
• "Alas, my back doesn't like the swayback effect for periods longer than naps."