Extremely neat or clean.
More example sentences
- Their mini daytime diner is neat as a pin, but clearly dated.
- My house is bursting with love and sunshine, bright and neat as a pin inside, and my husband and I put our feet under our huge dog Ralph to keep warm.
- A house that's clean and neat as a pin gives the impression that the property is easy to maintain, while clutter and grime suggest the house lacks storage space and needs a good deal of upkeep.