擽ぐる

(1)touch or stroke lightly; "The grass tickled her calves"

(2)軽く触るまたは撫でる

(3)touch (a body part) lightly so as to excite the surface nerves and cause uneasiness, laughter, or spasmodic movements

(4)表面神経を興奮させ、不安、笑いまたは発作的な運動を引き起こすために、（身体の部位）軽く触れる