walk all over
/wˈɔːk ˈɔːl ˈəʊvə/
/wˈɔːk ˈɔːl ˈoʊvɚ/
Etymology
English
The phrase comes from the literal act of walking over someone who is lying on the ground, treating them as if they are not there. Over time it became a metaphor for treating a person with complete disregard, and later also for defeating an opponent so thoroughly that it feels as if you have simply walked past them without any effort.