I don't actually think it has been asked before... I heard two different things
1. the people of Espoo (the place where they were born/grew up), which does make sense when you look at HCDR booklet ("that's a lot of beers to buy")
2. It doesn't mean anything, they just say it to confuse everybody (That's what they said in some interview, but I think they said that because they didn't want to tell us the truth...)