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1. noun A space, typically a closet, that is large enough for one to literally walk inside it. Please tell me the closet's a walk-in. You better hope it's a walk-in, with all the stuff you own!
2. noun A customer or client who arrives or enters off the street, especially without a previous booking or appointment. Hey Bill, two walk-ins just showed up. Do we have any tables available? The clinic reserves mornings for walk-ins, but you can book an appointment for the afternoon if you prefer.
3. adjective Of or referring to such clients or customers. The doctors wanted to set up a free walk-in clinic for people who don't have health insurance. The number of walk-in customers has plummeted ever since online shopping took off.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
1. mod. having to do with a customer who just comes in off the street. We were hoping for more walk-in trade.
2. n. a customer who walks in off the street. We had a couple of walk-ins this morning, but none of the hotel residents came.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.