1 general:: 1. See WALK ALL OVER. 2. Defeat easily, as in We walked over them in that practice game but don't know how we'll do in the real thing. [Second half of 1900s]
American Heritage Idioms
2 general:: Phrase(s): walk over (to someone or something) to move to someone or something on foot. • I walked over to her and asked her what she thought. • I just walked over.
McGrawhill's American Idioms And Phrasal Verbs