ガシガシ Also written がしがし Meanings Adverb boisterously; roughly; briskly Example sentences 母はため息をつきながら、高校一年生にもなった息子の頭をがしがしと撫でた。Mom sighed, and tousled the hair of her first-year high school son's head. Word lists Onomatopoeia Jinuma: Japanese Dictionary · Word lists