When you're slacking off in an office setting that requires a computer and have a window up for display purposes to simulate work. Often requires Alt+tab to display your Slackground when browsing non-work related content.
For example: Spread Sheets, Important looking emails, Memos, ect.
Oh crap BossRoger just walked by! Good thing I had my Slackground displayed so he did not see the NSFW pictures I was looking at.
The best kind of skiing ever. Slackcountry means jumping over the ropes at a ski resort to ski the virgin snow right next to the marked runs. Slackcountry is the best kind of skiing, superior to resort skiing and better than backcountry skiing because it doesn't require hiking.
Don't be a wimp, jump over that fence and let's hit that slackcountry, bro!
Someone who jumps from one relationship immediately into another one.
Serial monogamists can not stand to be alone and often suffer from vast commitment and insecurity issues.
Because they jump into relationships immediately after the previous one has ended, serial monogamists typically don't take the time to reflect on their behavior or why their previous relationships failed; thus, they end up making the same relationship mistakes over and over again.
Person 1: Damn, Dustin already has a new girlfriend?! It's only been two weeks since he broke up with his fiance! I think he's a sociopath.