tear something up

Từ điển Oxford Advanced Learner 8th

ˌtear sthˈup derived
to destroy a document, etc. by tearing it into pieces
Syn: ↑rip something up
• She tore up all the letters he had sent her.
• (figurative) He accused the leader of tearing up the party's manifesto (= of ignoring it).
Main entry: ↑tear_derived