1. something that is boring or causes one to fall asleep
Usage: informal
2. a person who sleeps or naps frequently
Usage: informal

Examples

• The documentary turned out to be a real snoozer.
• That three-hour lecture was such a snoozer that half the class fell asleep.
• The movie was a complete snoozer despite the big-name cast.
• My cat is such a snoozer, sleeping 16 hours a day.
• The book started well but became a snoozer in the middle chapters.
• He’s always been a snoozer, taking naps whenever possible.