What’s the deal: What happened, is happening, or is going to happen? Why did something happen or is someone acting a certain way? Usually used to say what’s wrong. How’s it going. What’s going on. Occasionally it’s used for swimming.
As in You seem really upset—what’s the deal?
中文释义：what’s the deal一般用于说怎么了，怎样了，怎么回事、偶尔也用来打招呼。相相于what’s up?或者what’s going on? 也常表达为“What is the deal with these？“ ，
举个例子：如果你的朋友近一两天举止怪怪的，你抓住他问他：What is the deal with these？(what is up with you?) 意思是：你最近怎么怪怪的。