crumple

noun

1. A crease, wrinkle, or irregular fold.

verb

1. (transitive)To rumple; to press into wrinkles by crushing together.

   “He crumpled the note and threw it away.”

2. (transitive)To cause to collapse.

   “He crumpled the car's body panels when he backed into a post.”

3. (intransitive)To become wrinkled.

   “The car's body panels crumpled when they hit the post.”

4. (figuratively, intransitive)To collapse; to surrender.

   “The team's defensive strategy crumpled.”

   “The defenders crumpled owing to exhaustion and dehydration.”

   “Yes, Juve were unfortunate, in the extreme, with the deflected goal from Casemiro that gave Madrid a 2-1 lead just after the hour. From that point onwards, however, it was staggering to see a team renowned for defensive structure crumple this way.”