Squash up
Definition 1 of 2
Pro Tip 1/3Recycling Context
Often used when talking about compressing waste like paper or plastic for recycling. 
Squash up the plastic bottles before you throw them away.
Pro Tip 2/3Space Saving
Implies making more space by compressing items. 
If we squash up the clothes, we can fit more in the suitcase.
Pro Tip 3/3Intentional Damage
Suggests the act is deliberate, not accidental. 
She told her brother to squash up the box so it wouldn't be usable again. 
Never forget "Squash up"
Humans forget easily. That's why you should download WordUp: Smart reminders, word games, AI practice, and much more!
WordUp Chrome Extension
As you browse the web instantly look up words you don’t know.
Get Chrome Extension