2. Hot chick who never seems to go out with anyone.
3. A female that you know you can't become involved with past the point of friendship. This may be due to having a boyfriend/not being interested in you/or too busy to be involved with anyone. She's like the real forbidden fruit. You can't have a taste of her.
The v-shaped smear of feces, sweat, and butt-lint found on the rear part of a toilet seat. The v shape comes from the gap between the buttocks, and the feces, sweat, and butt-lint come from ineffective wiping techniques.