The act of, or state of being a slacker. Describes the attitude typically associated with being a slacker.
Most appropriately applies to one with no responsibilities, one that gets by pretending to be hard at work, or the co-worker that is found hanging out near the coffee machine for most of the day.
Short for slacker attitude, or the general demeanor of an person with a lackadaisical and ineffectual 'devil-may-care' approach to life as a whole, which may prevent the individual from realizing his full potential. See Richard Linklater.
The singer's slackitude was threatening the future of the band, as a consequence of his chronic propensity to skip practices and show up late for gigs, coupled with his general lack of motivation to write new songs and shoot videos.