noun
child who loves their grandmother; grandma's child
Describes a child who is particularly attached to their grandmother, often preferring her company.
うちの娘は完全におばあちゃん子で、週末はいつも祖母の家に行きたがる。
My daughter is a total grandma's child; she always wants to go to her grandmother's house on weekends.
noun
child doted on by their grandmother; grandmother's darling
Focuses on the grandmother's side: a child who receives special affection and pampering from their grandmother.
彼はおばあちゃん子で、祖母からいつもお小遣いをもらっている。
He's doted on by his grandmother and always gets pocket money from her.
Compound of おばあちゃん (grandmother) + 子 (child). The exact origin is uncertain, but it follows a common pattern for describing a child's special bond with a family member.