On the House？跟房子有关系吗？在屋里，还是在屋顶上？如果这样想，可就被它误导啦。它在俚语中的意思是：
Given away free
免费赠送
或者
Without asking for money
不用钱
一起看看例句：
[家有喜旺 S01E20]
A: I like to believe that there"s something great out there waiting for me. You know?
B: Well, who knows? Maybe you could be waiter to the president someday. You’re sure handsome enough.
A: Thanks. You know, I just took some scones out of the oven. Why don"t I bring you ladies a couple on the house?
A: 我一直相信有什么好事在等着我呢，你看呢？
B: 有可能啊，没准儿有一天你能去服侍总统呢。起码外表肯定过关了。
A: 谢谢！说起来，我刚烤了点小烤饼，送你们俩尝尝怎么样？
[打工姐妹花 S03E05]
A: Here you go, ladies, a Max"s home made cupcake on the house.
B: Nah, I"m cool. I"m saving my calories for one of those fabulous new cronuts.
A: 姑娘们，送你们免费请吃个麦克斯自制小蛋糕。
B: 不用了，谢谢。我要把我今天的卡路里配额留给超酷的新牛角圈。
[老爸老妈浪漫史 S08E14]
A: After you.
B: Aw, thank you.
A: On the house, Robin! Take this bagel on the house. Have a paper on the house. I"d give you a house on the house if I could. You’re so beautiful. Everything in life should be free.
B: It’s so wonderful to be me!
A: 你先。
B: 谢谢。
A: 送你的，罗宾。贝果圈送你，报纸送你，只要你愿意房子也可以送你。沉鱼落雁之姿，世间万物皆可送你。
B: 做自己感觉真好！
小结：It’s on the house. 常用于酒店、饭馆和酒吧免费招待的酒水、食物或服务。现在也更多地用于其他表达“请客”的语境中。
你Get了吗？
【汇总贴】美式俚语小课堂
