show somebody up

Từ điển Oxford Advanced Learner 8th

ˌshow sbˈup derived
1. (BrE, informal)to make sb feel embarrassed by behaving badly
• He showed me up by snoring during the concert.
2. to make sb feel embarrassed by doing sth better than them
•Don't worry about being shown up by the kids— they've always used computers.
Main entry: ↑show_derived