The term slacker, in contemporary western culture, applies generally to young people who are intentionally underachieving at school, work or life in general. Slackers reject prevalent societal values, specifically the Protestant work ethic,"Doing Nothing". On Point. NPR. WBUR, Boston. 30 May 2006. 31 May 2006. and are frequently perceived as lazy, "good for nothing", and mooching off of others (typically parents, family members or girlfriends/wives). Apart from meaning lazy, slacker may also be used to insinuate habitual procrastination and a disorganized, slovenly lifestyle.
A typical stereotype is someone that spends their adult life barely employed in a series of dead end jobs more frequently held by teenagers such as fast food or the movie theater. These people are typcally depicted as living in their parent's basement, where they play video games, eat junk food, and interact with others primarily via the internet.
In general use there is no non-pejorative use of the term except in joking terms. A slacker is perceived to be a loser of no redeeming value.
Later, in 1991, Richard Linklater's movie Slacker spawned the label "slacker generation." A typical slacker is characterized by a static, unenthusiastic air manifesting in an apparent lack of effort. This lack of motivation is usually represented as a status of unemployment or only minor employment in the service industry.
The slacker ideal is also resonant with the notion of slack in the Church of the SubGenius, but the overall concept is substantially different.