There's an old saying in programming: you don't have to spell correctly, you only have to spell consistently. As long as you mispell everything the same way, your language will understand your code. However, most editors and IDEs have spell-check integration, though, because it's hard to get everyone on a team to spell things wrong consistently.

Unless, of course, you know just implement some bonus methods, like John's co-worker. This was frequently spammed in the Java codebase:

    public String toStrign() {
            return super.toString();
    }

Don't strign us along.