When a person or, often a small group of people go for a walk in a densley populated area. People go on walkies usually when bored. Once on walkies, the group of people often simply wlak around and do stupid things including inappropriately socialising with strangers, tormenting shops and business' and defacing public property.
OH EM GEE, lunch time has gotten to be so boring since they ban us from using the oval. Let's go walkies!