1. a person or thing that is remarkable, impressive, or outstanding
Usage: informal; often used in the phrase 'a real doozer' or 'a doozy'
2. something that is difficult, problematic, or unpleasant
Usage: informal

Examples

• That storm last night was a real doozer.
• The final exam was a doozer—I've never seen so many difficult questions.
• She's a doozer of a player; she scored three goals in one game.
• Getting the car fixed turned out to be quite a doozer.
• That joke was a doozer; everyone laughed.
• The traffic jam on the highway was a doozer this morning.