the act or acts of being a slackass. Also defined by extreme acts of apathy, laziness or lethargy.
Steven has reached a new level of slackassery by getting himself a remote control pivot mount for his widescreen TV so that he can adjust the viewing angle of the TV while laying on the couch.
A word to describe an act of behaviour resembling that of shack. If someone was to get a bin on there head, and start to cry, they could be described as a shackass