It was first used by Marine in the summer of 2003 when he joined one of the elite guilds on Ragnarok Online. The people in the guild did not talk often, and being as talkative as he was, Marine broke the ice by asking everyone a simple question: What did you eat today?
It is a question that is easy to answer and concerns a topic that everyone can relate to (food); the perfect icebreaker.
Esperine: What did you eat today?
Alynia: I had pizza! o_o
Persona: Chicken D:
Verdande: Mmm.. noodles ;o