Hm. I heard it was seize the day. (So it doesn't really have anything to do with fish, huh? )
Of course not. Let me digress a bit, in my home country we eat a lot of carp at the so-called Vigilia, that is the vigil night of Christmas Day, the 24th December. I'm afraid I can't recommend the fish - it's full of fishbones that you can easily choke on. Having said that, the taste of the fish is very good.