Rub-it! (Doggy style, The little toad & The rider), La Condoneria (The condom shop), Barcelona
A small metaphor of the condoms like rubber gum. And his utilization 'to erase' evidences. The copywrite Rub-it!, also being a part of the slang in the pornographic industry, it refers to erase it, and in turn, as pronunciation or sound to the word Rabbit and the topic that prays ' to fuck as rabbits '.