What does Kruipafstand mean?

The room ad proudly said: supermarket within kruipafstand.

Dutch student slang. This is a Dutch word. You will hear it a lot at Dutch universities, student associations and in student houses.

It is even closer than a stone's throw. Close enough to crawl to after a big night out. Students use it in room ads, for example when the house is near the university library or the super. Also read about de super and loca.