Do less than is required; loaf or shirk. For example, I'm afraid our donors are dogging it this year. This expression originated in sports and soon was transferred to other endeavors. [Slang; c. 1900]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.