A swizz is a situation that leaves you feeling cheated — you paid for something, or were promised something, and what you got was much less than you expected. It is a British word, very informal, and quite old-fashioned now; you hear it most from older speakers, or from children, or from adults using it half-jokingly. The feeling behind it is disappointment first and anger second. If a shop advertises a big pizza and brings you a small one, that's a swizz. If a film is called the scariest of the year and nothing scary happens, that's a swizz too. It is much lighter than words like 'fraud' or 'scam' — nobody calls the police about a swizz. Usually it appears as 'What a swizz!' or 'It's a swizz.' You may also see it spelled 'swiz'. There is a related verb, 'to swizz someone', meaning to cheat them in a small way, but the noun is far more common.

騙人的、坑人的（英式口語，多半是「說好的跟拿到的差很多」那種失望，不是真的詐騙）；常說成「什麼嘛，被騙了」