What is the difference between the lollipop and lolly pop?

mein ne invent nhi kiya jis ne kiya hai us se ja k pochu na qabar swe nikal k hamara dimagh kyun kha rhi ho daish.:P waise bhi khane se matlab hai ya uski history se aese npoch rhe ho jaise loolypop mein p.h.d krni hai....:D