To make a significant error.

A saying derived from poor decision making. I.e choosing to eat the chips on a meal first and thus being too full to eat the main and most delicious part of the meal.

Similar phrases: Screwed the pooch. Fucked up.

Anatidaephobia is defined as a pervasive, irrational fear that one is being watched by a duck. The anatidaephobic individual fears that no matter where they are or what they are doing, a duck watches.

Anatidaephobia is derived from the Greek word "anatidae", meaning ducks, geese or swans and "phobos" meaning fear.