A girl/boy who makes your heart pump faster every time you see or talk to her/him. Similar to eye candy. So charming and really good looking that your heart feels as if its pumping a great deal.
John passed by Staci
Staci turned around to her friend Beth and said "John is such a heart pumper!" Beth replied with a wry goofy smile on her face "He really is a heart pumper! So georgus!"