You: Hummina hummina???
Friend: Hey, did you hear about that killer party Billy's throwing this Saturday?
You: (after coming back to the real world from staring off into space) Hummina hummina???
Reference to Cheese, as a replacement for Yes. Yes is no longer superlative, cheese is the new affirmative.
Friend: We should totally go out to that techno bar tonight?
Me: Hummina hummina!