noun
child very close to their grandfather
Describes a child who has a strong emotional bond with their grandfather, often preferring his company.
See also: おじいちゃん子
うちの娘はおじいちゃんっ子で、週末はいつも祖父の家に行きたがる。
Our daughter is a grandpa's girl and always wants to go to her grandfather's house on weekends.
noun
child doted on by their grandfather
Focuses on the grandfather's affection and indulgence toward the child, rather than the child's own attachment.
彼はおじいちゃんっ子で、祖父に甘やかされて育った。
He was doted on by his grandfather and grew up spoiled.