to allow yourself or someone else to have too much of something enjoyable, especially food or drink(尤指在吃喝上)过分放纵,太纵情
I wish I hadn't overindulged so much (= had so much to eat and drink) last night.真希望我昨晚没有那么大吃大喝。
It's not good for children to be overindulged (= always given what they want).过分溺爱小孩不好。