국가권력급

Origin

"Gukga-gwollyeok-geup" — literally "state-power class" — comes from the hunter ranking system in the web novel and webtoon Solo Leveling. It is the top tier in the series, denoting someone whose strength and authority rival an entire nation. The exaggeration of an individual matching a state was already built into the source material, which made the phrase easy to lift out as a meme.

According to Namuwiki's account, the phrase first entered community usage on the genre-fiction minor gallery of DCInside — that is, as an in-joke among readers of the original.

Spread

What carried it outward was the streamer Ralo. A fan of the series who talked about it often on stream, he began using the phrase around the time the anime adaptation started airing. The decisive moment came while he was playing the game MapleLand: looking at a well-enhanced mithril wand, he admired his own luck and called it "state-power class." That clip is generally cited as the actual start of the meme.

The register of the phrase shifts at that point. In the source it is a serious rank; filtered through the stream it becomes a joke about attaching a national-scale modifier to a single game item. From there it spread through YouTube and DCInside as an all-purpose superlative for items, characters, people and situations alike, taking over the slot once held by older Korean superlatives.

Variations

Lower rungs mimicking the ranking system are used alongside it — "provincial-power class," "county-magistrate class" and the like — to mean impressive but not top-tier, often self-deprecatingly. For readers of the original it reads as a joke about demotion within the rank system; for everyone else, the drop from "nation" to "province" carries the meaning on its own.

How it is used

Praising an item or an enhancement result in a game, with deliberate excess
Referring to someone overwhelmingly skilled in a given field
Downgrading something good but not the best to "provincial-power class," self-deprecatingly
As irony, attaching the highest possible modifier to a trivial achievement