Gangnam is a territory in Seoul, Korea. I describe it as noble at the daytime and going crazy at the night time. I compare ladies to the territory. So - noble at the daytime, going crazy at the night time - and the lyric says I am the right guy for the lady who is like that.
PSYI've always tried to come up with funny dancing since I was young, to attract girls' attention for one thing. It's got to be funny. I can't pull it off with serious dances. That's not me.
PSY