The term originates from Koreans dabbing 3 years past the hype. It is a shortened version of the word, "Korean Dab"; just like how every word in Korea is shortened for absolutely no reason. The term can be used for other post-hype actions or words that are used by trend-confused or trend-exiting individuals.
Johnny: Dude, I'm so cheesed right now.
Dave: Who says cheesed nowadays, that's such a kab term.