The term "snow trip" is an idiomatic expression that refers to a situation where something unexpected or unwanted happens, often resulting in disruption or inconvenience. It can be used both figuratively and literally to describe any event that causes trouble or interferes with plans. For example, if someone says they had a "snow trip" while traveling on vacation because their flight was cancelled due to bad weather, it means that the unexpected occurrence of snow caused them to have an unpleasant experience during their journey.