Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. One who shirks work or responsibility: "In terms of their outlook on the future, slackers regard tomorrow with a studied cynicism or . . . don't even conceive of one” ( Julie Caniglia).
- n. One who tries to evade military service in wartime; a draft dodger.
Wiktionary
- n. One who procrastinates or is lazy; compare slack off.
- n. A person lacking a sense of direction in life; an underachiever.
- n. A person who seeks to avoid military service.
- n. A user of Slackware Linux, a type of application software.
WordNet 3.0
- n. a person who shirks his work or duty (especially one who tries to evade military service in wartime)
Examples
“At the time of the Civil War your grandpa was what we call a slacker in these days.”
“While the juxtaposition of law school with "slacker" is eye-catching, it's the second part of the book's title -- the part that comes after the colon -- that's a better description of Doria's book.”
“Pilotshark says: so sissy pansy hillbilly slacker is mr duke your plain pansy persona?”
Think Progress » Liberty University Withdraws From CPAC Because Of Gay Rights Group’s Co-Sponsorship
“Then, it's gingerbread pancakes with the seemingly adorable self-described "dorky" apparently stereotypical Austin slacker woman.”
Dru Blood - I believe in the inherent goodness of all beings: February 2006 Archives
“He dressed for the gig as always, in slacker's T-shirt and jeans; the polished loafers he wore in place of his customary sneakers were the lone hint of occasion.”
“The word slacker, recently come into good usage in the United States as a designation for a successful shirker of conscription, is a substantive derived from the English verb to slack, which was born as university slang and remains so to this day.”
“Slacking Off on Investing When it comes to investing, the so-called slacker generation has become downright timid -- and in big danger of falling further behind on its retirement savings.”
The Wall Street Journal: Six Tips to Getting the Best Deal on Your Rent
“To give you an example, I sometimes portray myself as a slacker, which is very true, but when I go back and look at my high school teacher comments on report cards, you see that there are recurring patterns.”
Rip Empson: Mike Birbiglia Talks Red Carpets, His Awkwardness, And Dust-Bustering In His Sleep
“Most ironic is that the very demographic "Smells Like Teen Spirit" appeals to, the so-called slacker generation, is the subject of ridicule in the song.”
“Neil: I had a boss who never got a cold and believed EVERY person calling in sick was a 'slacker' - it is hard to understand what a person doesn't experience - I wish we did have some of those body experience/exchange things - I know that a lot of migraine suffers would probably like to do what I do and give a full sensory exchange to their doctor and see how the treatment changes!”
National Invisible Chronic Illness Awareness Week: The four big lies.

colleen "One who avoids or neglects a duty or responsibility; specif., a person who shirks a duty or obligation to his country, esp. in time of war, as by attempting to evade military service." Dec 13, 2006