Despite Dan's repeated request to Rosie to meet with her friend Lisa, he never met up with Lisa because Rosie booby trapped his attempts because she had a crush on him.
a slutty girl that seduces you into having sex with her in attempts to give you an std or get herself pregnant.
Dave: "hey dude look at that hot chick over there shes checkin me out man"
Mark: "careful man thats carla shes a booby trap man best find another girl"