When a guy has the power to attract girls who are available( not seeing anyone) It is quite obvious if one has " biddie magnetism." The guy in question puts out little to no effort when picking up girls, they always come to him, hence Biddie MAGNETISM.
Gene: Yo I don't know why Adam gets so many ladies...
Erb: Well, Gene Adam's got biddie magnetism
Erb: Look at him over there those two girls over there are all over him
Girl 1: Lets go somewheres private
Girl 2: Damm girl, yous onto something
Adam: CHYA its all thanks to my biddie magnetism