Deleting a node after a given node in a singly linked list means removing the node that comes after a specified node. Here's an example of how to delete a node after a given node in a singly linked list using C:

```
void deleteAfterNode(struct Node* prevNode) {
    if (prevNode == NULL || prevNode->next == NULL) {
        printf("Invalid operation!");
        return;
    }
    struct Node* nodeToDelete = prevNode->next;
    prevNode->next = nodeToDelete->next;
    free(nodeToDelete);
}
```

In this code, we first check if the given previous node is valid, i.e., not null and not the last node in the list. If it is not valid, we print an error message and return. If the previous node is valid, we create a temporary pointer `nodeToDelete` to point to the node that comes after the given previous node. We then update the `next` pointer of the previous node to skip over the node we want to delete, and we free the memory occupied by the node we want to delete. This effectively removes the node from the list. Note that in this code, we assume that the given previous node is not the last node in the list. If the given previous node is the last node in the list, the behavior of this code is undefined.

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