She was earning pin money—no Social Security benefits for her family when she dies.

她靠挣小钱为生——她去世时，她的家庭没有社会保障福利。

That is, the bride dances with the male guests present at the wedding as the men pin money to her dress.

即，新娘与出席婚礼的男宾客共舞， 男宾客将钱钉在她的礼服上。