That man is a fraud.
Don't go to that shop, they often cheat their customers.
That salesman is a real crook.
He is an abject liar.
They tried to bamboozle us into buying several more tickets.
I'm afraid you've been had.
Don't believe him when he says he'll help you. He's just trying to fake you out.
3、Rise to the bait
Bait意指“诱饵”，rise to the bait表示“上钩”，是不是很形象呢？
As soon as I mentioned money he rose to the bait.
He was taken in by a man who said he was collecting money for a charity.
5、Fall into the trap of doing sth.
Trap意指“陷阱”或“圈套”，fall into the trap of doing sth. 从字面看指掉进做某件事的陷阱里，言外之意是本以为某件事是正确的，但实际上不是那么回事儿。
She's too clever to fall into the trap of doing any unpaid work.
I'm not going to put up with this monkey business.
1、She has been dumped on too often.
2、Mary was done brown!
3、He knew he'd been tricked/deceived, but it was too late to do anything.
4、They got taken/was taken in by a scam artist.
5、Don't fall into the trap of signing something without reading it first.
6、Don't be fooled by his appearance.
7、We got screwed when we bought this house.
8、The old man was tricked/trapped into buying a secondhand TV set.
9、I've been diddled! Half of these tomatoes are bad!
10、I'm wondering whether this really is a genuine Rolex. Do you think I've been sold a pup?
11、Richie couldn't believe he had been duped by his friends.
12、You have been spoofed.
13、It was just a lie to get you out here, and you fell for it!