all over one

all over (someone)

Crowding, covering, or in close proximity to something, especially in a way that is unwanted or unexpected. I had barely walked in the door when reporters were all over me for a story.
See also: all, over

all over one

In close physical contact. For example, Whenever I visit, that dog of Jane's is all over me. [Early 1900s] Also see fall all over one; have it all over one.
See also: all, one, over