- The definition of a scumbag is a person who is dishonest, contemptible, undesirable or sleazy.
An example of a scumbag is a felon with a long criminal record who shows up drunk at your door to take your daughter on a date.
scumbag definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
Slang a low, despicable person; lowlife
scumbag definition by American Heritage Dictionary
A person regarded as despicable.