When you knock something off of a shelve or hanger in a store and then quickly walk away instead of picking it up.
**Hanger falls**
"Crap!"
"Quick, Jane, do the Knock and Walk."
by LizVerde December 2, 2008
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When someone who is familiar in your home knocks briefly and then walks in without being formally invited.
Knocks and walks - to knock on the door and enter immediately.

The guy upstairs knocks-and-walks into our home anytime he feels like it. He just goes ahead and comes right in without waiting for "who's there" or "come in" or "coming!"
by Gasbarnut April 25, 2017
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