What was it originally? As for "push up on me", it's not an idiom. The image is of someone who is on top of someone else, either in an athletic, dance, or sexual situation, and wants the other one to push against him/her.
Lilian has told me that the original was "push op on me" - I think we need a little more context to know what is meant here, and maybe the original requester should check if the spelling correction is right.