1. a person who frequently changes opinions or cannot make decisions
Usage: informal
2. a person who talks or argues about unimportant matters
Usage: informal

Examples

• Don’t be such a whiffler – just pick a restaurant already!
• He’s a notorious whiffler who changes his mind three times before ordering coffee.
• The committee meeting was delayed by whifflers arguing over minor details.
• She called him a whiffler for constantly switching between political parties.
• Stop being a whiffler and commit to your decision.
• The whiffler spent an hour debating which pen to use.