Definition of "mossback" []

• An old shellfish or turtle with a growth of algae on its back. (noun)
• An old, large, or sluggish fish. (noun)
• An extremely conservative or old-fashioned person. (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.

• "A: because mossback is a traitorous cancervatard who would rather see the country fail than a democrat succed."
• "The mossback is the man who has either misread the signs of the times, or who has not possessed the speed demanded in the two-minute class."
• "The mossback is the man who tries to use the old methods under the new conditions; he is not "up" with the present times, but "back" with the old times."