2. Refers to an incident that she had with a boyfriend where they were about to have sex, but didn't have condoms. They searched through her parents' drawers, and when they couldn't find one, she said "well, why don't we use saran wrap?"
3. Now used as an insult towards the aforementioned girl, given that she mistreats all humans she comes in contact with.
4. Alludes to her idiocy.