The phrase refers to a puzzle type enjoyed on a portable computer known for its sleek design and user-friendly interface. These puzzles provide mental stimulation and can be accessed anywhere the device is taken. For example, a commuter might solve such a puzzle during a train ride using their portable computer.
Engaging with this type of puzzle offers cognitive advantages, potentially improving problem-solving skills and vocabulary. Historically, word puzzles have been a popular pastime, evolving from printed formats to digital platforms, reflecting technological advancements and shifts in leisure activities.