勾勾手像小孩子一样誓言
[gōu gōu shŏu xiàng xiăo hái zi yī yàng shì yán]
This username, which literally means 'Hook hands like a child’s promise', refers to making promises or oaths with others as carefree and honest as a child. It conveys the purity and sincerity of childhood vows made with crossed pinkies.