👉 In computer science, an "offcast" is a value that represents the memory address of a variable or object that has been allocated in one process and not used by another process. In other words, it's a pointer to a previously unused memory location.
For example, consider a class that contains a string variable `s`:
```cpp
class MyClass {
public:
char
s = nullptr; // This is an offcast
};
```
In this case, the `s`