When an entire class is banned from fieldtrips. Usually involves alot of weed hidden in guitars, about 3 bottles of vodka being chucked into a nearby, several kids drunk in the hallways at about 11pm and one of them snitching and getting away with nothing bcs her uncle owns the school.
(Tripping at the finish line. Trip at the finish line)
An idiom describing a situation where one does great at a subject, until near the end.
Note : To stay true to the meaning, the mistake has to have a great detrimental effect their overall performance.
Jake : Wow, Samantha is an amazing student! She has perfect attendance, she always seems to have the right answers, she turns in her homework everyday, and she aces all of the quizzes.
Tammy : Yeah, but didn't you hear? She completely failed the finals. She totally tripped at the finish line!