"Gukppong is short for gukga (nation) and ppong (a slang for methamphetamine).
Basically, it mocks when a person is being unconditionally patriotic or displaying irrational pride in one’s country.
It’s often used in situations like when Koreans root for foreign sports clubs just because they have a Korean athlete; when Korean reporters ask a foreign actress who came to Korea to promote a film if they know kimchi (Korean fermented side dish); or when a Korean correspondent asks a spokeswoman for the U.S. State Department in a regular briefing on state affairs and foreign diplomacy if she knows singer Psy."The flip-side of excessive nationalism is, of course, overwhelming insecurity. Cf. also America.