Keeping this in view, what does be all over someone mean?
From Longman Dictionary of Contemporary Englishbe all over somebodybe all over somebodyinformal to be trying to kiss someone and touch them, especially in a sexual way Before I could speak, he was all over me.
Subsequently, question is, what does I'm over you mean? It means that you don't care about a person anymore; for example if you broke up with your partner, you say "I'm over you" as in "I don't think about you anymore" or "I've moved on"
Herein, when this is all over meaning?
Something or someone is completely finished, defeated, or dead.
What does walk all over someone mean?
Treat contemptuously, be overbearing and inconsiderate to, as in I don't know why she puts up with the way he walks all over her or Don't let those aggressive people in sales walk over you. This idiom transfers physically treading on someone to trampling on one's feelings. [