A girl who hangs out around the lacrosse team in they hopes of getting laid. They will attend parties that lacrosse players throw and will go to lacrosse games. It is important to mention that they do not exclusively date or fuck lacrosse players, just associate with them and their friends.
I'm going to Jeff's party because you know there's going to be a shitload of lacrosse-stitues there looking for dick.
A person you hate intensely not because they deserve such hatred but because they serve as a focus for your general hatred. A healthy way to dispense with excess animosity.
Jake's not really that big an asshole. He just serves as my hate sink.