Other forms: walk-ins
A walk-in is a customer arriving with no table reserved. Take a walk-in, no walk-in tables tonight, a walk-in at eight.
Restaurants keep a few tables back for them, since bookings cancel and walk-ins do not. The word is also used of appointments at a clinic or a barber.
1nounwalk-inA customer arriving with no table reserved.
“They took a walk-in of six on a Friday and regretted it.”
walk-in is a customer.
Deverbal from walk in.
Etymology from Wiktionary, CC BY-SA