A humorous and somewhat crude slang term referring to masturbation. Named after the act of using one's hand ('mano' in Spanish) for the action, impersonating a fictional girlfriend named Manuela Palma.
Examples
- Spanish: Estoy seguro de que Juan se quedó en casa con su novia Manuela Palma.
- English: I'm sure that Juan stayed at home with his girlfriend Manuela Palma.