1. superlative form of squeaky; making the highest-pitched or most frequent squeaking sounds
2. superlative form of squeaky; most clean or spotless
Usage: informal

Examples

• The squeakiest wheel on the cart needed oil immediately.
• Her shoes were the squeakiest pair in the entire store.
• The squeakiest door in the house always woke the baby.
• He kept the squeakiest clean kitchen I’d ever seen.
• The old floorboard was the squeakiest spot in the hallway.
• She had the squeakiest voice in the entire choir.