0 something that costs far too much money -- fregatura, truffa
1 to cheat someone by charging them too much money for something -- spennare, rapinare
That taxi driver completely ripped us off.
2 to steal something -- rubare
3 something that is more expensive than it should be -- furto
At £25 these socks are a complete rip-off.
4 a copy of something that is not as good as the original -- brutta copia