When the universe finally delivers an epic and/or poetically just payback to someone who really, really deserves it.
"Yeah, so remember that radio blowhard who made those misogynistic and racist comments? He lost his voice, his sponsors, and got arrested for drug possession - narcotics and Viagra without prescriptions. Gotta love the karmic smackdown."
Adding someone to your social media network just so you can enjoy the bad things that have happened or are happening to him or her.
"Do you remember the snotty girl who used to make fun of you? I heard through the grapevine that she had three kids by different guys and is currently dating another loser. I'm schadenfriending her today on Facebook so I can see her karmic smackdown."