Wiktionary
walk off
vb. 1 (context transitive English) To recover from (a minor injury) by walking around. 2 (context transitive English) To measure a distance by walking, as by counting paces or extending a measuring tape or rope. 3 (context intransitive English) To flee or abandon.
WordNet
walk off
v. take without permission; "he walked off with my wife!"; "The thief walked off with my gold watch"
go away from; "The actor walked off before he got his cue"; "I got annoyed and just walked off" [syn: walk away]