someone you love so much that you would do anything for them. (There may be some exceptions like drugs or killing yourself, because frankly, if your lovererer wants you to kill yourself, than they must hate you with every inch of their body, therefore they are not your lovererer)
Guy 1: hey, how do you like that new girl your dating?
Guy 2: man, she is my lovererer. I would do anything for her.(k.m.s)