I think you mean "wuss". I'm not sure of the spelling because I've heard it in American movies, but not seen it written. As I understand, it means 'chicken', that someone is frightened to do something.
Try putting in another post giving both forms of spelling. This might attract the attention of Americans, who would be the experts on this one! But don't just head a post, "Help". It does not give any immediate information as to what you want help with. Call it, What does "whuzz" or "wuss" mean please?
Student or Learner