筆ふでが走はしる

expression, godan verb (-ru)

write with ease; draw with ease; one's brush flies

Describes writing or drawing smoothly and quickly, as if the brush moves on its own. Often used when inspiration or momentum carries the hand.

• アイデアが浮うかんで、筆ふでが走はしった。

  Ideas came to mind, and my brush flew across the page.

• 彼かれは一いっ気きに筆ふでが走はしり、短たん編ぺんを書かき上あげた。

  His brush moved swiftly, and he finished the short story in one go.