reverse cavegirl
When the girl gets fed up with the guy she likes being too shy to try and hook up with her. So she clubs him over the head (or just gets him drunk) and drags him back to her place like the cavemen did to the cavegirls in old cartoons.
Did you hear XXX and XXXXX are together now? Everyone knew they liked each other, but you know how shy he is... So when everyone went out the other night she went all reverse cavegirl on his ass. Kept buying him drinks all night and then took him back to her place to have her way with him.