tear up

Short definition from Wiktionary

Verb

1. 1
   To tear into pieces.
2. 2
   To cancel or annul, or to cause the cancellation or annulment of (e.g. an agreement or contract).
3. 3
   To damage.
4. 4
   To succeed dramatically in (an area of endeavor) or against.
5. 5
   To wrench out of the ground.
6. 6
   To have intense penetrative sex with.
7. 7
   To brutally assault.
8. 8
   To start shedding tears.

Noun

1. 1
   A fight; a scrap.