From Longman Dictionary of Contemporary Englishwalkieswalk‧ies /ˈwɔːkiz $ ˈwɒːk-/ noun [plural] British English spokenDHP used to tell a dog that you are going to take it for a walk Come on, Shep! Walkies!
Examples from the Corpus
walkies• We arrived as keen as a couple of puppies out for their first walkies, full of fun and raring to go!• And for once everyone is falling over themselves to take the Corgis for walkies to out of the way places.• Meanwhile, Yasmin Le Bon takes the kids for walkies.• And Thumper come home ... the fat owl who's gone walkies.• Three bones gets you an official welcome and 15-minute walkies with a staff member.