1. a person or thing that smashes or breaks something
2. something that is very impressive or successful
Usage: informal
3. an attractive person
Usage: informal; dated

Examples

• The demolition crew used a heavy smasher to break down the old building.
• That new song is a real smasher – everyone loves it.
• The window smasher was caught on security camera.
• Her latest novel is an absolute smasher with critics.
• The sledgehammer served as an effective smasher for the concrete wall.
• The party was a smasher – nobody wanted to leave.
• They needed a powerful smasher to break through the ice.