fleece

To embark on an adventure, often one that is very dangerous or challenging. In Greek mythology, Jason and the Argonauts went on a quest to find the golden fleece of a winged ram. The fossil hunters' descent into the cave is like the modern version of going in search of the golden fleece! When we had to go out for bread and milk in a blizzard, believe me, it felt like we had gone in search of the golden fleece! Would you guys relax? You're looking for our missing trash can, but you're acting like you've gone in search of the golden fleece!