slackassity 

In a state of being a slack ass.

Ashley didn't complete her chores and slept all day. Yet, she was still rewarded with an allowance despite her slackassity.

slackassity by Cinelynnie February 4, 2017

slackassery 

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.

slackassery by _FILTER_ July 4, 2010