1)Chosen location or place to store/hide one's pornography.
2)Small carrying case or knapsack to store burned porn Dvds and cds.
3)Found/stolen stash of pornography hidden by a youngster for later use.
When your boyfriend of girlfriend buys you an iPod for use in the gym, making it harder for other gym members to try to chat you up, as a dog peeing to mark it's territory.