Joe: Hey! Have you heard about this new song? It sounds like this: nana na nanaaa....
Mary: Oh man! You're humming it so badly that I've no idea what was that.
By Onida
Hum Hum
Phrase used as synonim to thinking about the problem which had apperaed or as a respons for moronicquestion.
A: Do you want to make some quests or stop playing?
B: hum hum
Late 90's post-grungespace rock band that still has a dedicated cult following to this day. Their only big single was "Stars", off of the "You'd Prefer an Astronaut" LP. They made one last LP "Downward is Heavenward" in 2000 and split up.