Definition of "ballpen" [ballpen]

• A pen that has a small metal ball as the point of transfer of ink to paper (noun)

WordNet. Princeton University. 2010.

• "“Biro” comes after the name of the guy who first built a ballpen."
• "The term escrima has been applied to stick-fighting as done in the Philippines – it is said by some that an escrima or arnis master can use even a simple ballpen as a martial arts weapon in stick-fighting and come out the winner."
• "Resolution: 600×836 ballpen again. started with doodling the shape of a fox head and then, it became grennian."