倒插门 dàochāmén
[marry into and live with one's bride's family] 结婚后男子到女方家里落户
旧时称男子至女方家里结婚并居住下来。即入赘。如：「堂堂男子汉大丈夫，怎好意思做这倒插门的女婿？」也作「倒踏门」。
英语 to marry and live with the bride's family (inverting traditional Chinese expectations)